How you can find out if live near a sex offender under Sarah s Law A PIECE of legislation can help you find out if you live near a sex offender in Dorset. Police forces, probation services and other government agencies keep tabs on dangerous criminals living in communities in England and Wales using special management plans known as Multi-Agency Public Protection Arrangements. Ministry of Justice figures show 846 registered sex offenders were being managed under MAPPA in the Dorset Police area as of March 2020. That is a rate of 122 offenders for every 100,000 people, above the average for England and Wales, of 119.