All constabulary forces volition beryllium asked to cheque unit against nationalist databases to place if anyone "slipped done the net", the Home Office says.
It follows the David Carrick rape lawsuit - the erstwhile Met Police serviceman who admitted to dozens of rapes and intersexual offences crossed 2 decades.
The National Police Chiefs Council (NPCC) volition inquire forces to cheque existent unit recruited earlier tougher vetting.
The College of Policing volition besides beryllium asked to fortify vetting procedures.
Home Secretary Suella Braverman said successful a statement: "David Carrick's sickening crimes are a stain connected the constabulary and helium should ne'er person been allowed to stay arsenic an serviceman for truthful long.
"We are taking contiguous steps to guarantee predatory individuals are not lone rooted retired of the force, but that vetting and standards are strengthened to guarantee they cannot articulation the constabulary successful the archetypal place."
The NPCC, who works with constabulary forces connected staffing, says the cheque volition assistance place "anyone who has slipped done the net" and "ensure those who are unfit to service tin beryllium rooted out".