Sarah's Law, known officially as the Child Sex Offender Disclosure Scheme, means that you can ask the police if someone who comes into contact with your kids has convictions of child sex offences.
It was piloted for 12 months by 4 police forces (Cambridgeshire, Cleveland, Hampshire and Warwickshire) - and it protected 60 children in that time.
Sara Payne has been campaigning for this law after her 8-year-old daughter Sarah was murdered by a convicted sex offender in 2000. Sara said: 'I am delighted that the years of campaigning and hard work by so many friends and colleagues have provided those who care for children with the right to check that adults who have access to them do not pose a danger.
'The evaluation has shown the huge benefits of increased but controlled access to information. The input of the police, children's charities and academics to the pilots has ensured consensus has been reached and we are working together to keep children safe.'
Please note: Police are urging parents to remember that you can go to your police force any time if you have concerns about your children's safety - you don't need to wait for this scheme to be rolled out in your area if you're worried now.