Legal Basis and Nature of the Requirement

Under procedural judicial review rules (e.g., CPR in the UK context), an application must be made:

• “promptly and in any event within 3 months”

Courts treat “promptly” as an independent requirement, meaning:

• A claim filed within 3 months can still be refused if delay is excessive in context.
• Delay may defeat permission for judicial review or substantive relief.

Key Principles of Promptness

1. Speed is essential in public law disputes
2. Delay can prejudice public administration
3. Third-party rights may crystallize during delay
4. Public interest in certainty outweighs individual delay excuses
5. Even short delays can be fatal depending on circumstances

Leading Case Laws (At Least 6)

1. R v Dairy Produce Quota Tribunal, ex parte Caswell (1990)

The court held that even where no fixed limitation period had expired, delay could justify refusal of judicial review.
Key principle: Courts must consider whether delay has caused prejudice to good administration or third parties.

👉 Established that promptness is not merely technical but substantive.

2. R v Secretary of State for Trade and Industry, ex parte Greenpeace Ltd (No. 2) (1994)

Greenpeace challenged a government decision regarding nuclear installations after some delay.

Held:

• Even where applicants are public interest groups, delay must be justified
• However, the court allowed flexibility due to public interest context.

👉 Shows balancing of promptness vs public interest standing

3. R v Stratford-on-Avon District Council, ex parte Jackson (1985)

The applicant delayed challenging a planning decision.

Held:

• Delay in challenging planning permissions is particularly sensitive
• Courts emphasized development rights and reliance interests

👉 Planning law is an area where promptness is strictly enforced.

4. R v Secretary of State for Transport, ex parte Presvac Engineering Ltd (1991)

A challenge was brought after significant delay.

Held:

• Even within statutory time limits, the court can refuse relief
• Delay that affects commercial certainty is especially damaging

👉 Reinforces importance of economic reliance and finality.

5. R (Finn-Kelcey) v Milton Keynes Borough Council (2008)

Although mainly about standing, the case reinforced that:

• Judicial review must be pursued without undue delay
• Tactical or strategic delay undermines fairness

👉 Courts disapprove of “wait and see” litigation strategies.

6. R v Horseferry Road Magistrates’ Court, ex parte Bennett (1994)

While primarily about abuse of process, the court emphasized:

• Courts may refuse relief where delay or conduct undermines justice
• Procedural fairness includes timely assertion of rights

👉 Links promptness with broader abuse of process doctrine.

7. R v Inspectorate of Pollution, ex parte Greenpeace (No. 2) (1994)

Reinforced that:

• Even meritorious claims can fail if not brought promptly
• Environmental and public law cases still subject to delay scrutiny

8. R (Burkett) v Hammersmith and Fulham LBC (2002)

The House of Lords clarified:

• Time begins when grounds of challenge are known
• But applicants must still act promptly once knowledge arises

👉 Important clarification of when delay starts running.

Effects of Failure to Act Promptly

If a claimant fails the promptness requirement:

• Permission for judicial review may be refused
• Relief may be denied even if case is strong
• Court may consider:
  • Prejudice to defendant
  • Impact on third parties
  • Good administration
  • Public interest in finality

Exceptions and Flexibility

Courts may relax promptness where:

• There is good reason for delay
• Case involves serious illegality or human rights
• No prejudice is caused
• Strong public interest exists

However, flexibility is exceptional, not routine.

Conclusion

The promptness requirement ensures that public law litigation is conducted in a manner that preserves certainty, fairness, and efficient administration. The courts consistently emphasize that judicial review is not a tool for delayed tactical challenges but a mechanism for swift correction of unlawful administrative action.