Police have started a drugs investigation following allegations about the private life of Leicester MP Keith Vaz.
Mr Vaz, 59, a married father of two, quit as chairman of the influential House of Commons Home Affairs committee in September after the allegations in the Sunday Mirror.
Scotland Yard said police had received a letter on September 7 asking them to look into matter.
The Metropolitan Police began an assessment process to see "what criminal offences - if any - may have been committed," according to Scotland Yard.
A spokesman said: "Following that assessment, which included obtaining early investigative advice from the Crown Prosecution Service, the MPS is now investigating offences under the Misuse of Drugs Act 1971.
"The investigation started on Thursday, 10 November."
Mr Vaz, the Labour MP for Leicester East, had a conversation regarding cocaine with one of the male escorts in which the MP said he did not want to use the drug, but indicated that he would pay for it for the other man at a later date, according to the Sunday Mirror.
More than 150 Conservative MPs have backed Leicester East MP Keith Vaz's appointment to a parliamentary committee.Read the full story ›
One of the campaign cars of Keith Vaz MP has been photographed in a disabled bay at Leicester railway station without a blue badge.
A spokeswoman for Mr Vaz told the Leicester Mercury: "It was wrong for the vehicle to be parked in a disabled parking bay.
"The driver of the vehicle has apologised for this and said it will never happen again."
Rt Hon Keith Vaz, chair of the Home Affairs Select Committee, has called for a "clear code of conduct" for police officers operating undercover.
He told ITV News that cases of undercover police officers fathering children with their subjects, or using the identities of children who have died, were "abhorrent".
"This isn't James Bond, this is happening," he added.
MP Keith Vaz has denied any wrongdoing in connnection with newspaper allegations involving around £500,000 paid into his bank account.Read the full story ›
Labour MP for Leicester East Keith Vaz could face a Parliamentary investigation over reports of mystery payments into his bank account.
Mr Vaz is denying he has questions to answer following newspaper reports of Scotland Yard finding funds of almost £500,000 ten years ago it believed to be of a 'suspicious nature' during an inquiry.
Chairman of the Home Affairs Select Committee Keith Vaz denied he had any questions to answer after The Daily Telegraph reported that Scotland Yard found that almost £500,000 was deposited into the MPs account over a six-year-period.
Questioned by ITV News Westminister Producer Dan Hewitt the Labour MP said the money was from "the sale and purchase of a property." He refused to name the property sale, and said the full report was available to read online.
Labour MP for Leicester East Keith Vaz could face a parliamentary investigation over reports of mystery payments into his bank account.Read the full story ›
Labour MP for Leicester East and Chairman of the Home Affairs Select Committee Keith Vaz denies he has any questions to answer following reports of mystery payments into his bank account.
Newspaper reports say almost half a million pounds was deposited over a six year period. There are calls for a parliamentary investigation into his conduct.
Sushmita Sen, Bollywood star and India's first Miss Universe, is in Leicester today to support diabetes charity Silver Star.Read the full story ›