PC Stuart Outten took six blows to the head from a 2ft long rusty blade as Muhammad Rodwan lashed out at the officer in August last year.
The 17-year-old was killed in a drive-by shooting in Tottenham, north London, in April 2018.
The officers suffered a dislocated shoulder and a broken eye socket after trying to break up the fight in Covent Garden, London.
PC Stuart Outten managed to taser 56-year-old Muhammad Rodwan after he lashed out with a rusty machete, jurors were told.
Nottingham Trent University student Arjun Singh, 20, died in hospital after the attack on Saturday.
The footage shows a police officer chasing a motorcyclist as he rides illegally through residential streets in Tipton, West Midlands.
Robert Wilson, 53, died after he was stabbed to death outside Thornton & Ross in the Linthwaite area of Huddersfield on Thursday night.
Aadil Umair Rahim was found nine hours after disappearing from Newport Pagnell Service Station on the M1 on Friday evening following a huge search.
The man, named locally as Robert Wilson, was stabbed during a confrontation in the ground of the Thornton & Ross (T&R) works in the Linthwaite area of Huddersfield.
After police investigated her disappearance, Andrew Brooks also pressured the teen, then 16, into keeping their contact and ‘romantic encounter’ secret.
Britney Pope filmed people emerging from the back of a lorry in North Petherton, Somerset, on Wednesday night, and also recorded her own expletive-filled reaction.
The footage released by South Yorkshire Police shows the collision that happened near Sheffield, South Yorkshire, in April last year.
A man, 36, and a 32-year-old woman, both from Adwick, Doncaster, were arrested following the death of two-year-old Keigan Ronnie O'Brien.
Dyfed-Powys Police said the deaths of Lilian Smith, 84, and daughter Susan Smith, 63, who were found dead in a house in Saundersfoot, Pembrokeshire, are being treated as unexplained but not suspicious.
Robert Swanepoel, 35, from Swindon, spent more than four years amassing a collection of indecent images.
Police seized handwritten documents from the boy's bedroom in which he outlined his plans.
A lawyer for one of the accused Israelis said he hoped "she has learned her lesson" after the sentencing.
Bec Winter fled from bushfires in Moruya on horseback but when she returned home her house had been ransacked by thieves, who stole son Riley's bike.