I don't usually join in when people are asked to resign but here I agree. Ian Blair is in charge of the UK police and he presided over the situation that ended in an innocent man being shot multiple times in the head at close range after he was 'mistaken' for a terrorist. Read the following story for further details http://www.thefirstpost.co.uk/index.php?storyID=9410
The key point in all of this is that the police murdered this man. They murdered him and lied about it. They initially released statements saying he was wearing a thick winter coat and that he ran when he was in the tube station. Neither was the case.
The police were looking for a suspected suicide bomber. They were told he lived at a certain address - where Jean Charles lived. They saw Jean Charles leave his home. Didn't stop him. They saw him walk to a nearby bus stop. Didn't stop him. They watched him get on a bus. Didn't stop him (remember the say they were sure he was a bomber with a bomb strapped to him.) Apparently he either got on or almost got onto another bus. If so they again didn't stop him. He went to a tube station and went inside. They didn't stop him. Only when he had got on the tube did they wrestle him to the ground and then shot him int he head multiple times.
If it was a case of 'mistakes' and they thought he was a bomber they have a blatant disregard for the British public as they let this supposed bomber with explosives on him get on a bus and the tube. This goes to prove that the police are incompetent, don't give a shit about the public, or they are murderers. No one wins with any of these scenarios.