The "Clare's Law" scheme -- named after 36-year-old Clare Wood who was murdered by her ex-boyfriend in 2009 -- is expected to come into force in March following a year-long pilot in several parts of Britain.
Wood, a mother-of-one, had met George Appleton on Facebook and was unaware of his history of violence against women, including the kidnapping of another girlfriend at knifepoint.
He strangled Wood and set her body on fire before hanging himself.
"Domestic abuse shatters lives -- Clare's Law provides people with the information they need to escape an abusive situation before it ends in tragedy," she told The Sun newspaper.
"The national scheme will ensure that more people can make informed decisions about their relationship and escape if necessary.
"This is an important step towards ensuring we do better by women like Clare Wood in the future."
