Police in the UK used a Taser to subdue a knife-wielding man, reported to be an Afghan migrant, on a street after he had fatally stabbed a person walking a dog. The incident, captured on video showing the moment officers deployed the Taser to disarm and restrain the suspect, has drawn attention amid ongoing public debate in Britain over immigration, asylum policy and violent crime.

The available article text does not provide further verified details such as the specific location, the date of the attack, the identity of the victim, or the current status of any police investigation or charges. The report focuses on the dramatic footage of the arrest, in which armed police can be seen confronting and Tasering the suspect before taking him into custody following the fatal stabbing.