At What Age Does A Police Constable Have To Retire?

Generally, at age 60.

The actual Home Office guidelines (as of October 2006) is that constables, sergeants. inspectors and chief inspectors must retire at  60.  Officers at higher rank don't hit compulsory retirement age until 65.

There is discretion for compulsory retirement age to be postponed in some circumstances.  The Chief constable can authorise it for officers at rank of superintendent and below.  The Police Authority has to authorise it for higher ranking officers.

These guidelines are supposed to apply to all forces.  Until fairly recently, different forces had their own individual guidelines on retirement ages for police officers.

Pension age is different.  So officers may be able to start drawing their pension sooner or later. The actual age when a pension can be drawn depends partly on the rules of the pension scheme and the police officer's rank.  Police constables may be able to start drawing their pension at age 55.