'Clare's Law' came into effect today in Greater Manchester and is in memory of Clare Wood who was killed in Salford by a man she met online.
The legislation allows people to check if their partner has a violent past. Her parents have campaigned for the change ever since she was killed three years ago.
More top news
Two men have been jailed after an 11-year-old boy died following a hit and run.
Blue skies and sea mist in the Isle of Man
Inquiries are continuing to reveal the identity of a man found dead on Saddleworth Moor more than eight months ago, a court has heard.