At the police station, time is the constraint that shapes everything. PACE Code C requires an interpreter where the detained person does not adequately understand English, but the custody clock does not pause neatly while one is found. Getting the dialect and clearance right first time is what keeps the interview clean and the detention lawful.
In short
- PACE Code C requires interpreting where the detainee does not adequately understand English.
- Wrong dialect or missing clearance can delay or contaminate the interview.
- Confirm dialect and clearance before the interview, against the custody clock.
What PACE expects
Code C builds interpreting into the safeguards for a detained person who cannot follow proceedings in English — at interview and for key custody processes. The interpreter is there to make the process intelligible and the record reliable, not to advise. Where that safeguard is absent or defective, the reliability of what follows is open to challenge.
Why dialect bites harder under time pressure
At the station there is no slack to absorb a mismatch. If an MSA interpreter is booked for a Yemeni detainee and struggles, the options are a delayed interview against a running clock or an interview that proceeds on shaky interpreting. Both are bad. Specifying the dialect up front avoids the choice entirely.
Clearance and counter-terrorism
For terrorism-related detention, an interpreter without the right clearance simply cannot be used, and substituting one at short notice is rarely possible. Confirming Counter Terrorist Check clearance at the point of booking is essential for these matters — it is not something to discover is missing at the custody desk.
Protecting the interview record
A contaminated interview is expensive later. The defence-side controls are simple: name the dialect, confirm clearance, and brief the interpreter on the bare facts where possible, so the account is rendered accurately the first time it is given on tape.