What links do the police have?
CPS - Discuss charge, liaise on evidence needed.
Courts - Obtain search and arrest warrants and may give evidence, protect vulnerable witnesses, hold defendants in cells as they await trial, transport them to court.
HM Prison Service and Probation Service - Provide information to probation services and may rearrest a defendant who has broken probation. They arrest those recalled back to prison. After Sarah's Law, police now co-operate with prison and probation about the managing of child sex offenders living in their area.
Parliament - enforce the law, and investigate crimes, arrest, collect evidence and question suspects.
Voluntary Support Services - can refer victims to Victim Support