Two suspected thieves were arrested thanks to the police and fire service joining forces.
The men tried to escape arrest at 3am today in the West Vale area of Calderdale.
Police were hot on their trail, having received reports that a defibrillator had been stolen from paramedics in Halifax.
The machines are used to treat people with life-threatening conditions such as heart attacks.
The men ran down some muddy waste land behind a pub on Stainland Road and police couldn’t get down an embankment.
They called the fire brigade and crews from Rastrick Fire Station turned up with a long ladder. Police arrested the two men.
A spokeswoman for West Yorkshire Police said: “Two men have been arrested in connection with the theft of a defibrillator from paramedics in Silver Street, Halifax, during the early hours of this morning.
“Both men, aged 23 and 24, were arrested in the Greetland area a short time after the reported theft, with West Yorkshire Fire and Rescue Service called to assist in the arrest of one of the men due to access issues.”