A Court of Appeal judge has been charged with exposing himself, British Transport Police (BTP) have said.
Lord Justice Richards has been charged with two counts of exposure relating to allegations of two separate incidents on trains in south-west London in 2006.
He was arrested on 19 January after a woman complained to police that a man had exposed himself to her.
Sir Stephen Richards, 56, from Wimbledon, south London, has overseen several high-profile hearings.
They include the case brought by the family of Jean Charles de Menezes, seeking action against police officers over the killing of the Brazilian at Stockwell Tube station in south London.
Sir Stephen, a married father-of-three, was bailed to appear at City of Westminster Magistrates' Court on March 8.
He was arrested by BTP following an undercover operation.
Sir Stephen became a High Court Judge in 1997 before taking up his current role in 2005.