Detective Superintendent Phil Owen of Greater Manchester Police said he is "very pleased" with the results of the Clare's Law scheme.
Speaking to Daybreak he said: "It's really important that we do learn those lessons.
"The domestic violence disclosure scheme I think is real evidence that we've listened to Clare's father, we've listened too various different organisations and from September last year we've given disclosure in over 50 cases."
More top news
Freezing, frosty and icy again tonight as temperatures fall.
Fashion giant Michael Kors Holdings announces that it is phasing out real fur over the next year.
The little boy cried for help but began making the two-mile journey home on his own when there was no response.