The moment a man swung a huge knife at police was captured on film - and it's pretty frightening.
PC Alex Prentice and PC Debbie Wishart were called to a house in Corby in Northamptomshire where they encountered Lee Vickers, 37, who began acting aggressively.
In the video filmed from PC Prentice's body camera, you can see Vickers run towards the officers brandishing an eight-inch knife.
He then swings it at Prentice, in an attempt to stab him.
The officers eventually managed to subdue him and he was arrested.
The incident occurred on March 25 last year and Vickers was later jailed for three-and-a-half-years.
The two officers involved received a Chief Constable's Commendation for their bravery at police awards in May.