Workbear재주넘는곰
대법원 2001두10455

Revocation of Reexamination Decision on Unfair Dismissal Remedy (부당해고구제재심판정취소)부당해고구제재심판정취소

Decided2002. 05. 28. Court대법원Case remanded (파기환송) — Employer's position partially upheld, with instructions for further factual review on certain issues
AI-generated English translation (summary, key points, decision summary and full text) for reference only — not an official translation and without legal effect. The Korean original below is authoritative.
AI Easy read — AI summary of this decision
AI-generated summary for reference only — the Korean original below is authoritative.

This case involved a labor union chapter president who was disciplinarily dismissed (징계해고) following a workplace violence incident. The Supreme Court (대법원) ruled that not only the specific grounds for dismissal but also other misconduct occurring before and after the incident could be considered when determining the appropriateness of the disciplinary action (징계양정). The Court held that if an employee repeatedly damages the trust relationship with the company under the pretext of union activities, the dismissal may be justified, though it remanded part of the case for further factual review.

Key takeaways
  • CaseIncident: A labor union chapter president was disciplinarily dismissed after causing a workplace violence incident.
  • OutcomeResult: The Supreme Court ruled that repeatedly damaging the trust relationship with the company under the pretext of union activities can constitute valid grounds for dismissal.
  • LessonLesson: Union activities must be conducted within legitimate bounds, and employees who continuously damage the employer's trust may face lawful dismissal (해고).
Issues
  • Whether misconduct not explicitly listed as a ground for dismissal can be used as supplementary evidence in determining the severity of disciplinary action
  • What standard should be applied to determine whether a dismissal is justified
  • Whether a labor union chapter president's repeated misconduct under the guise of union activities can constitute valid grounds for dismissal
Key reasoning

Under Korean labor law, a dismissal is considered justified when the employee's conduct is so serious that continuing the employment relationship becomes socially unacceptable. Misconduct that does not itself constitute a formal ground for dismissal may still be considered as supplementary evidence in assessing the appropriateness of the disciplinary measure. The Court emphasized that using union activities as a pretext to repeatedly undermine the trust relationship with the employer can constitute a serious cause making continuation of the employment relationship impossible. This reasoning allowed the employer to rely on a broader pattern of conduct, not just the immediate incident, to justify the dismissal.

Summary of Decision (English, AI translation)

[1] Whether a certain misconduct of an employee constitutes grounds for disciplinary action must be determined by whether the disciplinary committee, etc., actually relied on it as a ground for discipline based on the specific materials, and the grounds for discipline are not necessarily limited to the grounds for discipline prescribed in the rules of employment (취업규칙) or disciplinary regulations as stated in the disciplinary resolution or the written disciplinary disposition; furthermore, even misconduct that was not relied upon as a ground for discipline in the disciplinary disposition may be taken into account as reference material in determining the degree of discipline, such as the disciplinary subject's ordinary conduct and work performance, and facts of misconduct committed before and after the reasons for the relevant disciplinary disposition, as material for selecting the type of discipline.

[2] A dismissal disposition is recognized as justifiable only when there exists a cause attributable to the employee of such a degree that, in light of common social norms, the employment relationship can no longer be continued; whether the employment relationship with the relevant employee can no longer be continued in light of common social norms must be determined by comprehensively examining various circumstances, including the purpose and nature of the relevant employer's business, the conditions of the workplace, the relevant employee's position and the content of the duties in charge, the motive and circumstances of the misconduct, the impact on corporate order, including the risk of disrupting the hierarchical order of the enterprise caused thereby, and the employee's past work attitude, among other things.

[3] A case holding that where an employee who is the chairperson of a labor union, in addition to the grounds for discipline, disregarded the legality of methods and procedures and workplace order through various acts of misconduct before and after the dismissal, and repeatedly undermined the relationship of trust with the company, in light of common social norms, by unnecessary personal emotional misconduct under the pretext of or by riding on labor union activities, there is sufficient room to view that there existed a serious cause making it impossible to continue the employment relationship.

Full text (English, AI translation) 17,271 chars

[Plaintiff, Appellant] Plaintiff Co., Ltd. (Attorney Lee Seung-min, Counsel for the Plaintiff)
[Defendant, Appellee] Chairman of the National Labor Relations Commission
[Defendant's Intervenors] Defendant's Intervenor 1 and 1 other (Attorneys of Simin Jonghap Law Firm, Attorney Jeon Yeong-sik, Counsel for the Intervenors)
[Judgment Below] Seoul High Court Decision 2001Nu4988 delivered on November 8, 2001

[Order]

The part of the judgment below concerning Defendant's Intervenor 1 is reversed, and this part of the case is remanded to the Seoul High Court. The remainder of the Plaintiff's appeal is dismissed. The costs of the dismissed portion of the appeal shall be borne by the Plaintiff.

[Reasoning]

1. The court below found, based on the evidence it adopted, the following facts: the Defendant's Intervenors (hereinafter "Intervenors"), who were employees of the Plaintiff company, received notice of disciplinary dismissal from the Plaintiff on September 4, 1999 (grounds for discipline: disruption of management order and obstruction of business through creating an atmosphere of fear and anxiety due to an incident of violence in the workplace that occurred at approximately 13:00 on July 30, 1999, in the Plaintiff company's parking lot); the Intervenors filed an application for relief with the Gyeonggi Regional Labor Relations Commission on September 8, 1999; the said Commission, on November 16 of the same year, found that each of the said dismissals constituted an unfair dismissal in violation of the disciplinary procedures under the collective bargaining agreement, and ordered the Plaintiff to reinstate the Intervenors to their original positions and pay wages; the Plaintiff, in response, filed an application for reexamination on December 22, 1999; the National Labor Relations Commission, on March 27, 2000, rendered the reexamination decision at issue in this case, dismissing the Plaintiff's application for reexamination on the ground that although there was no defect in the disciplinary procedure, the disciplinary measure was excessive; meanwhile, Nonparty 1, an employee of the Plaintiff company, upon seeing Intervenor 2 — with whom he had been on bad terms due to the union chairman election — arriving at work at approximately 06:20 on July 29, 1999, in the aforementioned parking lot, grabbed him by the collar and assaulted him with an umbrella; when Nonparty 2, a fellow employee who had been asked for help by the said Intervenor, entered a taxi to report the matter to the police by mobile phone, Nonparty 1 broke the taxi's windshield with the umbrella and pulled Nonparty 2 out by the collar; and Nonparty 3, a fellow employee who tried to stop the fight between Nonparty 1 and Nonparty 2, and Nonparty 2 assaulted each other with their fists (regarding this incident, Nonparty 1, Nonparty 2, and Nonparty 3 received dispositions of deferred prosecution, while Intervenor 2 initially received a disposition of deferred prosecution but, after filing a complaint, received a disposition of no suspicion on May 9, 2000); the court below also found that on the following day, July 30, at approximately 13:20, in the same parking lot, Nonparty 1 assaulted Intervenor 1 in the face with his fist, and Intervenor 2, who was nearby, grabbed Nonparty 1 by the neck to stop him (regarding this, the Intervenors received dispositions of no suspicion).

Thereafter, the court below rejected the Plaintiff's argument that each of the dismissals in this case was justified, namely, that the two instances of group fighting between the Intervenors and other employees in the workplace were caused not only by the Intervenors' extortion and threats to hold the opposing election management committee members accountable for dereliction of duty after the union chairman election, but also that: ① Intervenor 1 formed a private organization called "Good Friends" and conspired to instigate workplace violence; ② on August 25, 1999, Intervenor 1 submitted a contribution to the readers' opinion column of a local newspaper stating that the Plaintiff company had refused to discipline Nonparty 1 and had also refused to process industrial accident compensation for Intervenor 1, and had this published while explicitly naming the company and its representative director, thereby defaming the Plaintiff company and its representative director; ③ the Intervenors filed complaints with labor authorities over trivial matters, causing the Plaintiff company to be fined 1,000,000 won and damaging the Plaintiff company's image; ④ the Intervenors had poor work attitudes, such as avoiding Sunday shifts; and that, immediately upon assuming office in the union leadership, the Intervenors filed a complaint against the Plaintiff company with the Gyeongin Regional Tax Office, causing the Plaintiff company to undergo a tax investigation and be subjected to additional tax assessment, and that these circumstances should also be considered as grounds for each of the dismissals in this case — the court below rejected this argument on the ground that there was no evidence to establish that the Intervenors had assaulted Nonparty 1 and others; rather, as noted above, only the fact that the Intervenors were assaulted by Nonparty 1 and others was established; and that circumstances ① through ④ above were not originally cited by the Plaintiff as grounds for each of the dismissals in this case, and therefore could not be used as a basis for determining their legitimacy; accordingly, the court below found that each of the dismissals in this case was unlawful for failing to satisfy the requirements of a disciplinary ground, and ultimately determined that the reexamination decision in this case was lawful.

2. Whether a particular act of misconduct by an employee constitutes grounds for discipline must be determined by whether the disciplinary committee or similar body actually relied on such act as a ground for discipline, based on the specific materials before it; the grounds for discipline are not necessarily limited to the grounds for discipline stated in the rules of employment or disciplinary regulations as recorded in the disciplinary resolution or disciplinary disposition document (see Supreme Court Decision 95Nu15742 delivered on September 20, 1996; Supreme Court Decision 95Nu16684 delivered on March 14, 1997, among others). Furthermore, even acts of misconduct that were not relied upon as grounds for discipline in the disciplinary action may nonetheless be taken into account, as materials relevant to the selection of the type of disciplinary measure, in assessing the severity of the disciplinary action, such as the disciplined person's ordinary conduct, work performance, and acts of misconduct committed before or after the disciplinary grounds in question (see Supreme Court Decision 96Nu4244 delivered on February 14, 1997; Supreme Court Decision 97Nu9161 delivered on December 9, 1997; Supreme Court Decision 98Da2365 delivered on May 22, 1998, among others).

However, according to the evidence adopted by the court below and the record, the following facts may be found: ⑴ when the chairman of the Plaintiff company's labor union, Nonparty 4, resigned before completing his term, which was to run until December 31, 1999, an election was held on July 9 of that year, resulting in the election of Intervenor 1 as chairman; a dispute arose among union members as to whether the new chairman's term was three years, as claimed by Intervenor 1, or only until December 31, 1999, the remainder of Nonparty 4's term; in particular, as Nonparty 1 and others, who had served as election management committee members at the time, took a position opposing Intervenor 1, Intervenor 1, despite having previously acknowledged upon his election as chairman that his own term would run only until December 31, 1999, developed strong animosity toward Nonparty 1 and other union members who had opposed his initial claim, raising issues against them and fostering conflict and tension with the opposing union members; and Intervenor 2, who as the union's general affairs manager supported Intervenor 1, likewise joined in this conduct (the Intervenors had formed and operated an in-house private organization called "Good Friends," led by Intervenor 1); ⑵ feeling anxiety and a sense of crisis as a result, Nonparty 1 instigated the violent incidents as found by the court below; given that, when such violent incidents occur within a labor union, it is self-evident that, from the standpoint of the Plaintiff company, which operates a taxi business requiring the psychological stability of its employees primarily for accident prevention purposes, the management order would inevitably be disrupted; accordingly, the Intervenors, as chairman and general affairs manager of the labor union respectively, were duty-bound to prevent such internal union violence in advance, and even where such violence occurred, to resolve the matter through their own capacity; nevertheless, the Intervenors actively fostered conflict and tension within the union, leading to the occurrence of the above violent incidents; moreover, Intervenor 1, in particular, submitted a contribution to the readers' opinion column of a local newspaper on August 25, 1999, describing the aforementioned violent incident and the employer's subsequent response using expressions such as "an incident beyond common sense that could not have occurred without a hidden agenda," thereby expressing dissatisfaction with the employer's failure to discipline Nonparty 1 and its failure to process the industrial accident compensation insurance payment for his own injuries, while making it appear as though the Plaintiff company was behind the said violent incident, explicitly naming the Plaintiff company and its representative director in the contribution; meanwhile, even though the Plaintiff company had referred Nonparty 1, who caused the said violent incident, and the Intervenors who were involved therein, to the disciplinary committee, requested the labor union to select employee-side disciplinary committee members, and afforded the Intervenors an opportunity to explain the above conduct, the Intervenors, on August 31, 1999, took the improper measure of selecting and notifying four persons, including the Intervenors themselves who were parties involved in the incident, as the employee-side disciplinary committee members; when the employer pointed out the impropriety of this and demanded that the selection be replaced, the Intervenors refused and did not attend the disciplinary committee meeting held on September 1 of that year; thereafter, they attended the disciplinary committee meeting reconvened at 11:00 on September 3, but shouted "Do as you please" and walked out; ⑶ furthermore, Intervenor 1 submitted a petition to the Commissioner of the Gyeongin Regional Tax Office on August 13, 1999, alleging that the Plaintiff company had omitted sales revenue by taking advantage of periods of non-assignment after hiring employees; however, Intervenor 1 made no effort whatsoever to attempt to resolve, through prior discussion with the Plaintiff company as employer, the issue of the relevant taxi drivers not receiving bonuses, national pension, medical insurance, and other benefits during the non-assignment period, but instead unilaterally proceeded straight to filing the said petition; moreover, around May 2000, after the dismissals in this case, Intervenor 1 distributed, without authorization, outside the company, leaflets criticizing the successor union chairman, Nonparty 5, using terms such as "human garbage" and "Nonparty 5, who sold out the union to the company president, dirtier than a prostitute," which ultimately led to a situation in which a majority of union members collectively expressed their opposition to the Intervenors' reinstatement; ⑷ and, as found by the court below, the Defendant likewise rendered the reexamination decision in this case on the premise that the Intervenors' acts of misconduct constituted grounds for discipline, but only on the ground that the severity of the disciplinary measure in each of the dismissals in this case was excessive.

Given these circumstances, even though the disciplinary resolution or disciplinary disposition document for each of the dismissals in this case states the grounds for discipline merely as "disruption of management order and obstruction of business through creating an atmosphere of fear and anxiety due to an incident of violence in the workplace that occurred at approximately 13:00 on July 30, 1999, in the Plaintiff company's parking lot," it is reasonable to view that the substantive acts of misconduct constituting the grounds for discipline include the violent incidents occurring over the two days of July 29 and July 30, 1999, in which the Intervenors were involved, as well as Intervenor 1's act of submitting the contribution to the local newspaper. Furthermore, even though the Intervenors were merely victims insofar as the handling of the criminal case regarding the said violent incidents is concerned, it must be recognized that an important cause of the occurrence of such violent incidents was the fact that the Intervenors, as chairman and general affairs manager of the labor union, actively fostered conflict and tension among union members; this constitutes a ground for discipline in that it indirectly caused internal union violence, thereby disrupting the Plaintiff company's management order; moreover, Intervenor 1's act of submitting the contribution to the local newspaper also constitutes a ground for discipline, in that, rather than resolving the said violent incident through normal means, Intervenor 1 instead groundlessly disparaged the Plaintiff company and its representative director, who had themselves suffered harm as a result of the incident; and the remainder of Intervenor 1's acts of misconduct may be taken into account as materials relevant to assessing the severity of the disciplinary measure.

3. Furthermore, a disciplinary dismissal may be recognized as justified only where there exist grounds attributable to the employee of such a degree that, according to common social norms, the employment relationship can no longer be continued; whether the employment relationship with the employee concerned can no longer be continued according to common social norms must be determined by comprehensively examining various circumstances, including the purpose and nature of the employer's business, the conditions of the workplace, the employee's position and the content of the duties in charge, the motive and circumstances of the misconduct, the risk to corporate order posed thereby, including the danger of disruption to the employer's hierarchical order, and the employee's past work attitude (see Supreme Court Decision 97Nu18189 delivered on November 10, 1998, among others). In light of the above factual findings, there is ample room to conclude that, in the case of Intervenor 1, in addition to the grounds for discipline set forth above, through various acts of misconduct committed before and after the dismissal in this case, Intervenor 1, disregarding the legitimacy of proper methods and procedures as well as workplace order, and using or exploiting union activities as a pretext, repeatedly damaged, through unnecessary personal misconduct born of emotional grievance, the relationship of trust with the Plaintiff company to the point where, according to common social norms, there exists a serious ground rendering it impossible to continue the employment relationship.

Nevertheless, the court below, based solely on the reasons stated above, determined that the dismissal of Intervenor 1 in this case was altogether unlawful for failing to satisfy the requirements of a disciplinary ground, and accordingly held that the portion of the reexamination decision in this case concerning Intervenor 1 was lawful; in so doing, the court below committed an error of law affecting the judgment by misapprehending the legal principles concerning the method of determining disciplinary grounds and the assessment of the severity of disciplinary measures; the argument in the grounds of appeal pointing this out is therefore well-founded.

However, in the case of Intervenor 2, since the degree of his misconduct or involvement was not serious, it cannot be said that, based on the above grounds alone, the employment relationship could no longer be continued according to common social norms to that extent; accordingly, the court below's determination that the reexamination decision in this case concerning Intervenor 2 was lawful is justified in its conclusion, and there is no error of law affecting the judgment as alleged in the grounds of appeal.

4. Therefore, the part of the judgment below concerning Intervenor 1 is reversed, and this part of the case is remanded to the court below; the remainder of the Plaintiff's appeal is dismissed, and the costs of the dismissed portion of the appeal shall be borne by the losing party; it is so decided as set forth in the Order.

Presiding Justice Lee Yong-woo, Justice Seo Seong, Justice Bae Gi-won, Justice Park Jae-yoon (Presiding/Reporting Justice)

【판결요지】

[1] 근로자의 어떤 비위행위가 징계사유로 되어 있느냐 여부는 구체적인 자료들을 통하여 징계위원회 등에서 그것을 징계사유로 삼았는가 여부에 의하여 결정되어야 하는 것이지 반드시 징계결의서나 징계처분서에 기재된 취업규칙이나 징계규정 소정의 징계근거 사유만으로 징계사유가 한정되는 것은 아닐 뿐만 아니라, 징계처분에서 징계사유로 삼지 아니한 비위행위라고 하더라도 징계종류 선택의 자료로서 피징계자의 평소의 소행과 근무성적, 당해 징계처분 사유 전후에 저지른 비위행위 사실 등은 징계양정에 있어서의 참작자료로 삼을 수 있는 것이다.

[2] 해고처분은 사회통념상 고용관계를 계속할 수 없을 정도로 근로자에게 책임 있는 사유가 있는 경우에 행하여져야 그 정당성이 인정되는 것이고, 사회통념상 당해 근로자와의 고용관계를 계속할 수 없을 정도인지의 여부는 당해 사용자의 사업의 목적과 성격, 사업장의 여건, 당해 근로자의 지위 및 담당직무의 내용, 비위행위의 동기와 경위, 이로 인하여 기업의 위계질서가 문란하게 될 위험성 등 기업질서에 미칠 영향, 과거의 근무태도 등 여러 가지 사정을 종합적으로 검토하여 판단하여야 한다.

[3] 노동조합의 위원장인 근로자가 징계사유 이외에도 해고를 전후한 각종 비위행위를 통하여, 방법 및 절차의 적법성과 직장질서를 외면하고 노동조합 활동을 빙자하거나 이에 편승하여 불필요한 개인적 감정의 비행으로써 사회통념상 회사와의 신뢰관계를 반복적으로 훼손한 경우, 근로관계를 계속할 수 없는 중대한 사유가 있다고 볼 여지가 충분하다고 한 사례.

【참조조문】

[1] 근로기준법 제30조

[2] 근로기준법 제30조

[3] 근로기준법 제30조

【참조판례】

[1] 대법원 1996. 4. 23. 선고 96다2378 판결(공1996상, 1580), 대법원 1996. 9. 20. 선고 95누15742 판결(공1996하, 3214), 대법원 1997. 2. 14. 선고 96누4244 판결(공1997상, 790), 대법원 1997. 3. 14. 선고 95누16684 판결(공1997상, 1126), 대법원 1997. 12. 9. 선고 97누9161 판결(공1998상, 305), 대법원 1998. 5. 22. 선고 98다2365 판결(공1998하, 1718) / [2] 대법원 1992. 5. 12. 선고 91다27518 판결(공1992, 1834), 대법원 1994. 1. 11. 선고 93다49192 판결(공1994상, 697), 대법원 1995. 4. 25. 선고 94누13053 판결(공1995상, 1987), 대법원 1998. 11. 10. 선고 97누18189 판결(공1998하, 2875)

【주문】·【이유】 전문 6,241자 · 펼쳐 보기

【원고, 상고인】 원고 주식회사 (소송대리인 변호사 이승민)

【피고, 피상고인】 중앙노동위원회위원장

【피고보조참가인】 피고보조참가인 1 외 1인 (소송대리인 법무법인 시민종합법률사무소 담당변호사 전영식)

【원심판결】 서울고법 2001. 11. 8. 선고 2001누4988 판결

【주 문】

원심판결 중 피고보조참가인 1에 관한 부분을 파기하고, 이 부분 사건을 서울고등법원에 환송한다. 원고의 나머지 상고를 기각한다. 상고기각 부분의 상고비용은 원고의 부담으로 한다.

【이 유】 1. 원심은 그 채용한 증거에 의하여, 원고 회사 소속 근로자들인 피고보조참가인(이하 '참가인'이라고 한다)들은 1999. 9. 4. 원고로부터 징계해고(징계사유 : 1999. 7. 30. 13:00경 원고 회사 주차장에서 직장 내 폭력사태로 인한 경영질서 문란과 공포분위기 및 불안감 조성으로 인한 업무방해) 통보를 받게 되자 1999. 9. 8. 경기지방노동위원회에 구제신청을 하였고, 위 위원회는 같은 해 11. 16. 위 각 해고가 단체협약상의 징계절차를 위반한 부당해고에 해당한다고 인정하여 원고에 대하여 원직복귀 및 임금지급 명령을 내린 사실, 이에 대하여 원고가 1999. 12. 22. 재심신청을 하자, 중앙노동위원회는 2000. 3. 27. 징계절차상의 하자는 없으나 징계양정이 부당하였다는 이유로 원고의 재심신청을 기각하는 이 사건 재심판정을 한 사실, 한편 원고 회사 소속 근로자인 소외 1은 1999. 7. 29. 06:20경 위 주차장에서 평소 노동조합 위원장 선거 문제로 감정이 좋지 않던 참가인 2가 출근하는 것을 보고 그의 멱살을 잡고 우산으로 폭행을 하다가, 위 참가인의 부탁을 받은 동료 근로자 소외 2가 택시 안으로 들어가 휴대폰으로 경찰에 신고하려 하자, 우산으로 택시 앞유리를 깨뜨리고 소외 2의 멱살을 잡아 끌어내렸으며, 소외 1과 소외 2의 싸움을 말리던 동료 근로자 소외 3이 소외 2와 서로 주먹으로 상대방을 폭행한 사실(이에 관하여 소외 1, 소외 2, 소외 3은 기소유예처분을 받았으나, 참가인 2 기소유예처분을 받았다가 진정을 제기하여 2000. 5. 9. 혐의없음처분을 받았다), 또한 소외 1은 이튿날인 7. 30. 13:20경 같은 주차장에서 주먹으로 참가인 1의 얼굴을 폭행하였고, 옆에 있던 참가인 2는 소외 1의 목을 잡고 이를 말린 사실(이에 관하여 참가인들은 혐의없음처분을 받았다)을 각 인정하였다.

그런 다음 원심은, 이 사건 각 해고가 정당하다는 원고의 다음과 같은 주장, 즉 참가인들이 2회에 걸쳐 직장 내에서 다른 근로자들과 패싸움을 벌인 것은 참가인들이 노동조합 위원장 선거 이후 반대파 선거관리위원들을 직무유기 책임을 물어 고발하겠다고 공갈·협박한 데에 기인한 것일 뿐만 아니라, ① 참가인 1은 사조직 '좋은 친구들'을 결성하여 직장 내 폭력행위를 유도할 것을 음모하였고, ② 1999. 8. 25. 지역신문 독자투고란에 원고 회사가 소외 1에 대한 징계요구를 거절하였고 참가인 1에 대한 산재처리도 거부하였다는 내용의 투고를 하면서 회사명과 대표이사 이름을 실명으로 기재하여 이를 보도케 함으로써 원고 회사와 그 대표이사의 명예를 훼손하였으며, ③ 사소한 이유로 노동관서에 진정을 제기하여 원고 회사로 하여금 벌금 100만 원의 처벌을 받게 함과 아울러 원고 회사의 이미지를 실추시켰고, ④ 일요일 근무를 회피하는 등 근무태도가 불량하였으며, 참가인들은 노조집행부에 취임하자마자 경인지방국세청에 원고 회사에 대한 진정을 제기하여 원고 회사로 하여금 세무조사를 받게 하고, 세금 추징까지 당하게 하였으므로 이러한 사정도 이 사건 각 해고의 사유로 삼아야 한다는 원고의 주장에 대하여, 참가인들이 소외 1 등을 폭행한 사실이 있음을 인정할 아무런 증거가 없고, 오히려 앞서 본 바와 같이 참가인들은 소외 1 등으로부터 폭행을 당한 사실만 인정될 뿐이며, 위 ① 내지 ④ 사정들은 원래 원고가 이 사건 각 해고의 사유로 삼았던 것이 아니어서 그 정당성 판단의 근거로 삼을 수 없으므로 이 사건 각 해고는 그 징계사유를 갖추지 못하여 위법하다는 이유로, 결국 이 사건 재심판정은 적법하다고 판단하였다.

2. 근로자의 어떤 비위행위가 징계사유로 되어 있느냐 여부는 구체적인 자료들을 통하여 징계위원회 등에서 그것을 징계사유로 삼았는가 여부에 의하여 결정되어야 하는 것이지 반드시 징계결의서나 징계처분서에 기재된 취업규칙이나 징계규정 소정의 징계근거 사유만으로 징계사유가 한정되는 것은 아닐 뿐만 아니라(대법원 1996. 9. 20. 선고 95누15742 판결, 1997. 3. 14. 선고 95누16684 판결 등 참조), 징계처분에서 징계사유로 삼지 아니한 비위행위라고 하더라도 징계종류 선택의 자료로서 피징계자의 평소의 소행과 근무성적, 당해 징계처분 사유 전후에 저지른 비위행위 사실 등은 징계양정에 있어서의 참작자료로 삼을 수 있는 것이다(대법원 1997. 2. 14. 선고 96누4244 판결, 1997. 12. 9. 선고 97누9161 판결, 1998. 5. 22. 선고 98다2365 판결 등 참조).

그런데 원심이 채용한 증거들 및 기록에 의하면, ⑴ 원고 회사 노동조합은 위원장인 소외 4가 1999. 12. 31.까지의 임기를 채우지 아니한 채 사임하게 되자 그 해 7. 9. 선거를 실시하였고 그 결과 참가인 1이 위원장에 당선되었는데, 신임 위원장의 임기가 위 참가인 1 주장의 3년인지 아니면 위 소외 4의 잔여임기인 1999. 12. 31.까지인지에 관하여 조합원들 사이에 다툼이 생기고, 특히 당시 선거관리위원을 맡았던 소외 1 등이 참가인 1에 반대하는 입장에 서게 되자, 참가인 1 위원장에 당선된 이후 자신의 임기가 1999. 12. 31.까지임을 스스로 인정한 바 있음에도 불구하고 자신의 당초 주장에 반대하였던 소외 1 등 조합원들에 대하여 강한 반감을 가지고 문제를 제기하는 등 반대파인 조합원들을 상대로 갈등과 긴장을 조장하였으며, 노동조합 총무부장으로서 참가인 1을 지원하였던 참가인 2 역시 이에 동조하였던 사실(참가인들은 참가인 1 대표로 하는 '좋은 친구들'이라는 회사 내 사조직을 결성하여 활동하여 왔다), ⑵ 이에 불안감과 위기감을 느낀 소외 1이 원심 판시와 같은 폭력사태를 일으키게 되었는바, 이러한 노동조합 내부의 폭력사태가 발생하게 되면 우선 사고예방 차원에서 근로자들의 심리적 안정이 긴요한 택시영업을 하는 원고 회사의 입장에서 볼 때 그 경영질서가 문란하게 될 것임은 자명한 일이므로, 노동조합 위원장 또는 총무부장인 참가인들로서는 마땅히 위와 같은 노동조합 내부의 폭력사태를 사전에 예방하였어야 함은 물론이고 폭력사태가 발생한 경우에도 자체의 역량으로 문제를 해결하여야 함에도 불구하고, 참가인들은 위와 같은 폭력사태가 발생하도록 노동조합 내부의 갈등과 긴장을 적극적으로 조장하였을 뿐만 아니라, 특히 참가인 1은 1999. 8. 25. 지역신문의 독자투고란에 위 폭력사태와 그 후의 사용자측의 대응에 관하여 '배경이 없으면 일어날 수 없는 상식 밖의 사건'이라는 등의 표현 아래 사용자측이 위 소외 1에 대한 징계와 자신의 피해에 관한 산업재해보상보험금이 지급되도록 사무처리를 해 주지 않은 데 대한 불만을 토로하면서, 마치 원고 회사가 위 폭력사태의 배후인 것처럼 원고 회사의 명칭과 대표이사의 이름까지 명시하는 내용의 투고를 하는 반면, 정작 원고 회사가 위 폭력사태를 야기한 소외 1과 이에 관련된 참가인들을 징계위원회에 회부한 다음 노동조합에 근로자측 징계위원 선정을 요청하고 참가인들에게 위와 같은 행위를 변명할 기회를 부여하였는데도, 1999. 8. 31. 사건 관련자인 참가인 자신들을 포함한 4인을 근로자측 징계위원으로 선정하여 통보하는 부당한 조치를 취한 다음, 사용자측이 그 부당성을 지적하면서 교체선정을 요구하자 이를 거부하면서 같은 해 9. 1. 개최된 징계위원회에 불참하였다가 그 후 9. 3. 11:00에 다시 열린 징계위원회에 나와서는 "회사 마음대로 하라."고 고함을 지르고 밖으로 나가 버린 사실, ⑶ 또한, 참가인 1은 원고 회사가 근로자를 고용한 뒤 미발령을 이용하여 매출을 누락하였다는 내용의 진정서를 1999. 8. 13. 경인지방국세청장에게 제출하면서도, 정작 그 해당 택시기사들이 미발령 기간 동안 상여금·국민연금·의료보험 등의 혜택을 받지 못하였다는 점에 대하여 사전에 사용자인 원고 회사 사이에 해결을 하려고 논의를 시도하는 등의 아무런 노력도 해 보지도 아니한 채 대뜸 일방적으로 위 진정서 제출을 선행하였을 뿐만 아니라, 이 사건 해고 후인 2000. 5.경 후임 노동조합 위원장인 소외 5에 대하여 '인간쓰레기', '노동조합을 회사 사장에게 팔아먹은, 창녀보다 더 더러운 소외 5' 등의 용어를 사용하며 비난하는 내용의 유인물을 사외에서 무단 배포함으로써 마침내 노동조합원들 다수가 참가인들의 복직에 반대하는 집단적 의견표명을 하게 되는 등의 사태까지 일어난 사실 등을 알 수 있으며, ⑷ 피고도 참가인들의 비위행위가 징계사유에 해당함을 전제로 하고 다만 이 사건 각 해고의 징계양정이 부당하다는 이유로 이 사건 재심판정을 하였음은 원심이 인정하는 바와 같다.

사정이 이러하다면, 이 사건 각 해고에 있어서 그 징계결의서나 징계처분서 등에 징계사유가 '1999. 7. 30. 13:00경 원고 회사 주차장에서 직장 내 폭력사태로 인한 경영질서 문란과 공포분위기 및 불안감 조성으로 인한 업무방해'라고만 기재되어 있다고 하더라도, 그 실질적인 징계사유가 되는 비위행위에는 참가인들이 관련된 1999. 7. 29.과 같은 달 30.의 양일 간의 폭력사태 및 참가인 1이’ 저지른 위 지역신문 투고 행위가 포함된다고 봄이 상당하다. 또한, 비록 위 폭력사태에 있어서 참가인들이 형사사건의 처리에 있어서는 피해자에 불과하였다고 하더라도 그와 같은 폭력사태가 발생하게 된 데에는 노동조합의 위원장 또는 총무부장인 참가인들이 조합원들 사이의 갈등과 긴장을 적극적으로 조장한 것도 중요한 하나의 원인이 되었다고 보아야 하고, 이는 노동조합 내부의 폭력사태를 간접적으로 야기함으로써 원고 회사의 경영질서를 문란하게 하는 징계사유에 해당할 뿐만 아니라, 참가인 1의 위 지역신문 투고 행위도 위 폭력사태를 정상적으로 해결하지 아니하고 도리어 이로 말미암아 피해를 당한 원고 회사 및 그 대표이사를 근거 없이 비방하는 것으로서 징계사유에 해당하는 것이며, 참가인 1에 관한 나머지 비위행위는 그 징계양정에 있어서의 참작자료로 삼을 수 있는 것이다.

3. 나아가 해고처분은 사회통념상 고용관계를 계속할 수 없을 정도로 근로자에게 책임 있는 사유가 있는 경우에 행하여져야 그 정당성이 인정되는 것이고, 사회통념상 당해 근로자와의 고용관계를 계속할 수 없을 정도인지의 여부는 당해 사용자의 사업의 목적과 성격, 사업장의 여건, 당해 근로자의 지위 및 담당직무의 내용, 비위행위의 동기와 경위, 이로 인하여 기업의 위계질서가 문란하게 될 위험성 등 기업질서에 미칠 영향, 과거의 근무태도 등 여러 가지 사정을 종합적으로 검토하여 판단하여야 할 것인바(대법원 1998. 11. 10. 선고 97누18189 판결 등 참조), 위 사실관계에 의하면, 참가인 1의 경우에는 앞서 본 바와 같은 징계사유 이외에도 이 사건 해고를 전후한 각종 비위행위를 통하여, 방법 및 절차의 적법성과 직장질서를 외면하고 노동조합 활동을 빙자하거나 이에 편승하여 불필요한 개인적 감정의 비행으로써 사회통념상 원고 회사와의 신뢰관계를 반복적으로 훼손하여 근로관계를 계속할 수 없는 중대한 사유가 있다고 볼 여지가 충분하다 할 것이다.

그럼에도 불구하고, 원심이 앞서 본 바와 같은 이유만으로 참가인 1에 대한 이 사건 해고가 아예 그 징계사유를 갖추지 못하여 위법하다고 판단한 나머지 이 사건 재심판정 중 참가인 1에 대한 부분이 적법하다고 한 것은 징계사유의 확정방법 및 징계양정에 관한 법리를 오해함으로써 판결에 영향을 미친 위법을 저질렀다고 아니할 수 없으므로, 이 점을 지적하는 상고이유의 주장은 이유 있다.

다만, 참가인 2의 경우에는 그 비위행위나 가담의 정도가 중하지 아니하여 위와 같은 사유만으로 사회통념상 고용관계를 계속할 수 없을 정도에 해당한다고 볼 수는 없을 것이므로, 참가인 2에 관한 이 사건 재심판정이 적법하다고 한 원심의 판단은 그 결론에 있어서 정당하고, 거기에 상고이유의 주장과 같이 판결에 영향을 미친 위법이 없다.

4. 그러므로 원심판결 중 참가인 1에 관한 부분을 파기하고 이 부분 사건을 원심법원에 환송하며, 원고의 나머지 상고를 기각하고 상고기각 부분의 상고비용은 패소자의 부담으로 하기로 하여, 주문과 같이 판결한다.

대법관 이용우(재판장) 서성 배기원 박재윤(주심)

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