What to do if…
you receive a subpoena or formal demand to testify and the deadline is soon
Short answer
In the UK this is often called a witness summons. Verify it directly with the court/issuer using contact details you find independently, then get urgent legal advice before you reply, agree dates, or hand anything over.
Do not do these things
- Do not ignore it because you’re shocked, busy, or think it’s “not about you”.
- Do not use phone numbers, emails, QR codes, or payment links printed on the document until you’ve verified them independently.
- Do not delete or alter potentially relevant messages/files/notes; pause auto-delete and keep originals.
- Do not discuss case details with other witnesses, on social media, or with anyone involved in the case.
- Do not sign a statement or agree to an interview “just to be helpful” while panicked.
- If you think you could be at risk of self-incrimination, do not answer substantive questions without independent legal advice.
What to do now
- Capture and calendar (2 minutes): photo/scan every page, note the date/time/place and any deadline to respond, and set alarms (today + 24 hours + day before).
- Identify what you’ve been ordered to do: attend to give evidence, produce documents, or both. Write down the court name and case reference exactly.
- Verify it independently with the court:
- Find the court’s official contact details yourself (not from the document) and ask the court office to confirm the case reference and that you are required to attend/produce documents.
- Work out whether it’s civil or criminal (don’t guess):
- Civil (High Court/County Court) commonly uses a witness summons under civil rules (often on Form N20).
- Criminal (Magistrates’ Court/Crown Court) uses witness summons rules under criminal procedure (Part 17). This matters because the route to change/limit it differs.
- Get urgent legal advice that fits your position:
- If you’re a witness/third party: a solicitor can advise what you must do, what you can object to, and how to ask for more time.
- If you may be implicated: get criminal defence advice before any interview or testimony.
- Preserve information safely (do this immediately):
- Pause auto-deletion on email/chats; don’t wipe devices or “clean up” folders.
- Make a separate copy set for your own review; keep originals unchanged.
- If the deadline is soon or you genuinely can’t attend, act quickly (don’t no-show):
- Contact the court promptly to explain you need urgent direction/time and ask what application/process is required.
- In civil cases, the court can set aside or vary a witness summons; a solicitor can help you ask for this properly.
- If you’re being asked for documents: make a two-column list: “Requested” and “Where it is” (device/account/paper file). Keep it factual—no commentary—until you’ve had advice.
What can wait
- You do not need to decide today whether you “want to be involved”.
- You do not need to write a full statement or long email explanation right now.
- You do not need to hand over everything you have immediately—first verify authenticity and get advice on scope and timing.
Important reassurance
It’s normal to feel frightened and trapped by official paperwork. The safest early steps are procedural: verify, preserve, and get advice. That prevents the most common irreversible mistakes.
Scope note
These are first steps only, for the next hours/day. Later steps depend on which court it’s from, whether it’s civil or criminal, and whether you’re a witness, a party, or potentially at risk.
Important note
This is general information, not legal advice. Court powers and deadlines can be strict. If anything is unclear, seek urgent advice from a qualified UK solicitor and verify instructions directly with the issuing court.
Additional Resources
- https://www.justice.gov.uk/courts/procedure-rules/civil/rules/part34
- https://www.justice.gov.uk/courts/procedure-rules/civil/rules/part34/pd_part34a
- https://www.legislation.gov.uk/uksi/2025/909/part/17
- https://www.legislation.gov.uk/ukpga/1965/69/section/2
- https://www.gov.uk/government/publications/form-n20-witness-summons
- https://www.gov.uk/government/publications/criminal-investigation-guidance-for-witness-summons/criminal-investigation-guidance-for-witness-summons-accessible