The unnamed individual was taken to a west London police station last week and released under investigation.
A 13-year-old boy has been arrested in Britain for a terrorism offence as part of an ongoing investigation related to the alleged sharing of extreme Islamist material online, Scotland Yard said
Neil Basu, an Indian-origin British police officer, is widely believed to be in a short-list of candidates who could become the next London Metropolitan Police Commissioner.
Britain's embattled Prime Minister Boris Johnson is on Tuesday facing fresh allegations in the ongoing partygate scandal as details emerged of a surprise 56th birthday cake party
The Speaker is said to be keen on a drugs crackdown
The Metropolitan Police had said a "robust" policing plan will be in place throughout Sunday and officers will take action if they witness breaches of the regulations
The newspaper has confirmed that most of the passwords were correct.