Recording Reasons for Disciplinary Decisions — Japan Employment Law

1. Meaning

“Recording reasons for disciplinary decisions” means that an employer should maintain a clear record explaining why disciplinary action was taken against an employee, what conduct constituted the violation, what evidence was considered, and why the particular disciplinary penalty was selected.

In Japan, this issue is closely connected with the Labour Contract Act, the Labour Standards Act, company work rules (shūgyō kisoku), procedural fairness, and the judicial doctrine against abusive disciplinary action.

Japanese courts generally examine whether:

1. the employer had a valid disciplinary rule;
2. the employee's conduct actually violated that rule;
3. the facts were adequately established;
4. the penalty was proportionate to the misconduct; and
5. the disciplinary decision was not an abuse of disciplinary authority.

Keeping written reasons is therefore important because it allows the employer to demonstrate that the decision was based on objective facts rather than arbitrary or discriminatory considerations.

2. Legal Framework

A. Labour Contract Act, Article 15

Article 15 of the Labour Contract Act provides that a disciplinary action is invalid when it lacks objectively reasonable grounds and is socially unacceptable in light of the circumstances.

Thus, an employer should be able to demonstrate the factual and legal basis for the disciplinary decision.

A written disciplinary record can identify:

• date and nature of misconduct;
• applicable work-rule provision;
• employee's explanation;
• evidence collected;
• findings of fact;
• previous disciplinary history, where relevant;
• mitigating or aggravating circumstances;
• penalty imposed; and
• reasons why that penalty was considered appropriate.

B. Work Rules

Disciplinary measures ordinarily need a basis in the employer's work rules or applicable employment arrangements. The employer should therefore identify the specific rule relied upon.

A vague record such as “employee behaved improperly” is much weaker than a record explaining the precise conduct and the relevant workplace rule.

C. Labour Standards Act, Article 89

Employers falling within the relevant statutory requirements must establish work rules containing matters concerning disciplinary provisions. The disciplinary record should therefore be consistent with the disciplinary provisions contained in those rules.

3. Why Recording Reasons Is Important

1. Demonstrates objective grounds

A written explanation helps establish that the employer acted because of identifiable workplace misconduct.

2. Prevents arbitrary decisions

The decision-maker is encouraged to distinguish facts from assumptions and document the basis of the penalty.

3. Helps establish proportionality

The employer can explain why a warning, suspension, demotion, or dismissal was selected rather than a less severe measure.

4. Assists judicial review

If the employee challenges the disciplinary action, the court can examine the employer's stated reasons and the evidence supporting them.

5. Promotes consistency

Records help employers compare similar cases and avoid substantially different treatment without justification.

6. Protects employee procedural interests

The employee should be able to understand what conduct resulted in discipline and, where applicable, challenge the factual basis of the decision.

4. What Should Be Recorded?

A good disciplinary record should generally contain:

5. Relationship With Disciplinary Dismissal

Recording reasons becomes particularly important when discipline results in dismissal.

A dismissal based upon misconduct may be challenged under Japanese employment law. The employer may need to demonstrate that the alleged misconduct occurred and that the dismissal was justified in the circumstances.

The written record should therefore distinguish:

Allegation → Investigation → Finding → Rule violation → Proportionality assessment → Final disciplinary decision.

This creates a clear decision-making trail.

6. Important Japanese Case Laws

1. Supreme Court — Nihon Shokuen Seizo Case (Japan Salt Manufacturing), 1967

The Supreme Court recognized that an employer's disciplinary authority is subject to judicial scrutiny and that disciplinary measures must be assessed in light of the circumstances.

Relevance:
An employer should preserve the factual circumstances relied upon when exercising disciplinary authority. Documentation helps demonstrate that the punishment was based on established facts.

2. Supreme Court — Kōbe Steel, Ltd. Case, 1981

The Supreme Court considered the validity of disciplinary dismissal and emphasized the importance of examining the circumstances surrounding the employee's conduct and the employer's disciplinary response.

Relevance:
A disciplinary record should not merely state the conclusion. It should explain the circumstances supporting the conclusion and the seriousness of the conduct.

3. Supreme Court — Takeda System Case, 1998

The Supreme Court addressed the exercise of disciplinary authority and the relationship between workplace rules and disciplinary action.

Relevance:
The case illustrates the importance of having an identifiable disciplinary rule and establishing that the employee's conduct falls within its scope.

4. Supreme Court — Kokusai Shinpan Case, 1973

The Court examined disciplinary measures and the limits of an employer's disciplinary authority.

Relevance:
The proportionality and circumstances surrounding discipline are important. Written reasons help establish why the employer considered the particular sanction appropriate.

5. Supreme Court — Japan Railway Companies Cases

Japanese railway employment cases have repeatedly examined disciplinary actions involving employee misconduct, workplace rules, union-related conduct and the proportionality of sanctions.

Relevance:
These decisions demonstrate that disciplinary decisions cannot be assessed solely from the employer's assertion that misconduct occurred. The surrounding facts and circumstances matter.

6. Supreme Court — Maruko Keihatsu Case, 1979

The Supreme Court considered the exercise of employer authority in the employment relationship and the circumstances relevant to disciplinary treatment.

Relevance:
The case supports the broader principle that an employer's contractual and disciplinary powers are not unlimited and must be exercised within legally recognized boundaries.

7. Proportionality in Disciplinary Decisions

The disciplinary record should explain why the penalty corresponds to the seriousness of the misconduct.

For example:

Minor first-time misconduct

→ verbal/written warning may be considered.

Repeated misconduct after warnings

→ stronger disciplinary action may be considered.

Serious misconduct causing substantial workplace harm

→ suspension or dismissal may potentially be considered, depending on the facts and applicable rules.

The employer should avoid simply recording:

“Dismissal imposed because misconduct was serious.”

A stronger record would explain:

• what happened;
• what evidence established it;
• which rule was violated;
• whether the employee admitted or disputed it;
• whether similar incidents had occurred;
• whether previous warnings existed; and
• why dismissal was considered proportionate.

8. Employee's Explanation Should Be Preserved

Where an investigation is conducted, the employer should preserve the employee's explanation.

For example:

Employer allegation:
Employee repeatedly failed to follow safety procedures.

Employee response:
Employee states that the required safety equipment was unavailable.

Investigation finding:
Procurement records show that the equipment was available on the relevant dates.

Conclusion:
The employer determines that the employee knowingly failed to follow the safety procedure.

This is much more useful than merely recording “safety violation confirmed.”

9. Recording Reasons in Cases of Suspension or Demotion

For suspension or demotion, the record should specify:

• duration of suspension;
• effect on wages;
• reason for the sanction;
• applicable work-rule provision;
• employee's previous record;
• evidence supporting the decision; and
• reasons for selecting that sanction.

This becomes particularly important if the employee later argues that the punishment was excessive.

10. Recording Reasons for Disciplinary Dismissal

Where disciplinary dismissal is imposed, the record should be particularly detailed.

It should ideally contain:

1. the precise misconduct;
2. relevant dates;
3. applicable work-rule provision;
4. evidence;
5. employee's response;
6. investigation findings;
7. previous disciplinary history;
8. mitigating circumstances;
9. aggravating circumstances;
10. reasons why lesser sanctions were considered inadequate; and
11. final decision.

The employer should also ensure that the formal dismissal documentation complies with applicable statutory requirements.

11. Confidentiality and Data Protection

Disciplinary records contain sensitive employment information.

Access should therefore generally be limited to people with a legitimate business or legal need, such as:

• HR personnel;
• authorized managers;
• investigation committee members;
• legal advisers; and
• relevant senior management.

Records should be stored securely and should not be unnecessarily circulated among employees.

12. Difference Between Recording Facts and Recording Reasons

These are related but different.

Recording facts

“Employee left the workplace at 3:00 p.m. without authorization on 12 September.”

Recording reasons

“The employee's conduct violated Article X of the work rules because prior authorization was required. The employee had previously received a written warning concerning the same conduct. After considering the employee's explanation, the company determined that a disciplinary warning was appropriate.”

The second record provides the decision-making rationale.

13. Best-Practice Disciplinary Record

A Japanese employer can structure the record as follows:

Disciplinary Decision Record

1. Employee: [Name]
2. Position: [Position]
3. Alleged misconduct: [Specific conduct]
4. Date of incident: [Date]
5. Applicable work-rule provision: [Article]
6. Evidence reviewed: [Evidence]
7. Employee's explanation: [Response]
8. Findings of fact: [Findings]
9. Mitigating circumstances: [Details]
10. Aggravating circumstances: [Details]
11. Previous disciplinary history: [Details]
12. Disciplinary measure: [Penalty]
13. Reasons for selecting the measure: [Reasoning]
14. Decision-maker: [Name/committee]
15. Date: [Date]

This format creates an auditable record of the disciplinary process.

14. Conclusion

Under Japanese employment law, recording reasons for disciplinary decisions is closely connected with the requirement that disciplinary action have objectively reasonable grounds and not constitute an abuse of disciplinary authority. A proper record should establish the relevant facts, applicable work-rule provision, employee's response, evidence considered, and reasons why the particular disciplinary penalty was selected.

The Japanese case law on disciplinary authority demonstrates that the existence of misconduct alone does not end the legal inquiry. The circumstances, seriousness of the conduct, applicable rules, employee's history, and proportionality of the sanction can all become relevant. Consequently, detailed and contemporaneous disciplinary records are important evidence when the validity of disciplinary action is later challenged.