A French police officer kicked and stamped on the head of a British man who allegedly lunged at police with a knife after being told to wear a mask on a train.
Video of the arrest shows the armed officer, who isn't wearing a face mask, pointing his handgun at the 42-year-old man and then placing his foot on the back of the Brit's head.
The policeman is then seen stamping on the Englishman's head - leaving him in a pool of blood - while passengers look on from a train carriage and a woman shrieks in horror.
The officer uses his foot to pin down the Englishman's head for about two minutes while a second officer, who is wearing a mask, sits on the man's back and handcuffs him.
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