Four men have been convicted of murdering a London drug dealer who set up business in a block of flats in Bristol.
Jurors were shown dramatic footage of the moment police officers chased the armed attackers - who were wearing balaclavas - through the streets of Bristol.
Jordan Parker, Korrie Hassan, Leon Eaton and Yonis Diblawe have all been charged with the murder of 21-year-old Yasin Ahmed.
Yasin Ahmed, had come to Bristol from London to sell heroin and crack cocaine. He had taken over the flat of a vulnerable drug user.
But it was on the same 'turf' as another London drugs gang, who ran a supply which they called 'The Joey Line' - named because users would call a dealer who used the pseudonym 'Joey.'
CCTV shows the gang in the moments after the stabbing of the 21-year-old.
The gang is filmed running away to a getaway car. But they drive directly into the path of a patrol car, which had been called to the disturbance in Canynge House, in Redcliffe in the early hours of June 23 2018.
Despite the fact they could see some gang members carrying machetes officers continued the pursuit on-foot. They eventually caught four men.
Police say this is an example of rival gangs enacting 'County Lines' - a method of distributing drugs from London to the regions of the UK.
After the chase, police recovered a machete, a Zombie knife, and a taser among other weapons.
Four men were convicted at Bristol Crown Court and will be sentenced this afternoon.