He was arrested for breaching bail conditions, which is not a criminal offence. Police either have to charge him (so he goes before a judge) or release him with

He was arrested for breaching bail conditions, which is not a criminal offence. Police either have to charge him (so he goes before a judge) or release him within 24 hours on the same bail conditions. They took the opportunity while he was in that 24 hour period to arrest him on a US extradition request.