https://www.slab.org.uk/faqs/appearing-from-custody-on-a-warrant/
Applicants appearing after being arrested on a warrant, which subsequently means they appear from custody.
Question: What type of ABWOR can be provided?
Answer: If the client did not turn up at the undertaking or cited appearance, and is now appearing from custody on the matter for the first time, then appointed solicitor ABWOR can be granted for this custody appearance.
The usual criteria still needs to be met – solicitor taking instructions, prior relationship with the solicitor of the firm, with the court appearance done both the solicitor or delegated to another solicitor or the duty solicitor.
Relevant legal aid guidance: Failure to appear – appearance on a warrant – continued availability of ABWOR