Detectives identified a sex attacker by trawling through CCTV images.
Khalid Abdullah, 35, of Towler Street in Peterborough, was today jailed for eight years.
The Sudanese national had threatened his victim with a weapon before dragging her to an alleyway where he pushed her against a building and tried to rape her.
He then apologised and offered the woman his mobile phone to call police before she escaped.
More top news
It's already the warmest Halloween on record and temperatures will stay remarkably mild under prolonged sunshine during the rest of today
A WWII veteran has flown from Texas to be reunited with the plane he flew as young serviceman based in Cambridgeshire.
It will be sunnier and warmer than yesterday with the chance that it will be the warmest Halloween on record.