The first footage has emerged of the Streatham terror attacker being followed by police minutes before he stabbed two people on Sunday.
The CCTV footage from a private property shows Sudesh Amman moments after he left a bail hostel following his release from prison in January.
A plain-clothed police officer who was trailing Amman on a motorbike is seen traveling down the same road between two and three minutes later.
Amman and the police officer can be seen on a street which is around a – minute walk away from the Streatham High Road, where the terror attack took place.
The – year-old appears to be wearing a gray woolly hat and black jumper with a large white image across the middle.
Amman was under police surveillance when he stabbed two people in south London while wearing a fake suicide vest. He was then shot dead by officers.
Police said witness statements suggest Amman stole a knife from a shop and was pursued by a shop assistant.
Detectives added that as he ran from the shop he removed the knife’s packaging and attacked two members of the public.
The Metropolitan Police said in a statement: “Armed officers, who were part of a proactive counter-terrorism surveillance operation relating to the attacker, were following him as he left an address in the Streatham area at shortly after 
(hrs.
“He then made his way on foot and was observed entering a shop on Streatham High Road shortly before : (hrs. “
Metropolitan Police assistant commissioner Neil Basu had praised his officers for their actions but warned that “with 3, or so subjects of interest currently on our radar and many convicted terrorists soon Due to be released from prison, we simply cannot watch all of them, all the time “.
Amman had been jailed for possessing and distributing terrorist documents in December , but was freed automatically halfway through his sentence less than a fortnight ago.
There are 255 terrorists in jail in Britain, with Most thought to be holding Islamist extremist views, according to the latest publishing ed figures to the end of September.
Figures suggests that under current laws, up to could be freed this year.
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