In this edition: in South Wales, police are called to a disturbance in a block of flats and are confronted by a man brandishing two large kitchen knives. Officers contain him behind safety doors and begin negotiating with him. But as the incident escalates, police realise that they might have to use taser to protect both themselves and the man.

In Humberside, a lone-officer with a police dog arrives on scene following reports of a street fight. When the officer intervenes, he is assaulted by one of the men with a right hook to the head. Injured and with no other officers to back him up, the officer must rely on his police dog to bring his attacker to under control.

And in Somerset, police receive a chilling 999 call in which a woman claims to have stabbed her husband several times. When officers arrive on the scene they try to save the victim, while his attacker cooly and calmly confesses to her crimes.