A hero cop caught a crook armed with a seven inch knife after chasing him through a kids play park and house back gardens.
The intrepid officer spotted drug dealer Callum Schooling acting suspiciously with two other men
As he ran off and the cop and hid colleagues spotted the huge red knife in the waistband of his trousers.
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Bodycam footage shows the officer in pursuit of him as he left the park in Church Street, in the Chesterton area of Cambridge.

In followed him into a cul-de-sac then into a backyard passed a greenhouse.
He led him down an alleyway before running through a car park.
The police officer then collared him in the garden of a block of flats.
During the foot race he is radioing in and providing updates.
“He’s got a knife,” he said.
“Church Street, he’s got a knife.”
He tells Schooling, 22: “Stand still, I’ve got a taser.
“Stand still.”
He then apologised for getting in a colleague’s way adding: “Sorry mate.”
After finally catching up with him after 45 seconds, he screams: “On the floor now.
“Get on the floor.
“On the floor.
“Arms behind your back.”
Schooling mutters: “Alright.”
The out-of-puff cop adds: “You are under arrest for an off wep.”
He struggled for breath as he read him his rights, Need To Know.”
It happened on June 30 last year.
Schooling, of Talbot Way, Letchworth, was jailed for two years-and-eight-months in prison at Cambridge crown court on Tuesday (Nov 5).

He previously pleaded guilty to conspiracy to supply cocaine and possession of a bladed article.
A Cambridgeshire Constabulary spokesperson said: “Neighbourhood officers were on patrol in Cambridge when they spotted a group of suspected drug dealers and users near to a play park in Church Street, Chesterton.
“As they approached the trio, Callum Schooling ran off and officers could see a large red knife in the waistband of his trousers.
“Following a short foot chase, Schooling was arrested and found in possession of the knife, a mobile phone, more than £600 in cash and five pairs of new sunglasses.
“He also discarded a second mobile phone which was also recovered.”
Pc Will Lovell, from the Neighbourhood Support Team, said: “This sentence reflects the serious nature of both drug dealing and carrying a weapon.
“Thanks to the team’s work, he is now off the streets. We hope this serves as a reminder that drug dealing is not tolerated in our county.”
Another – named Nathan – said: “I don’t get how civilians who don’t having nothing on lose to officers with gear on.”

One local said: “Job well done and brave.”
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