The Metropolitan Police has apologised to the Speaker of the House of Lords after he was incorrectly identified as the source of information relating to Lord Mandelson's arrest. Officers met Lord Forsyth earlier on Thursday after he requested urgent talks to understand how his name came to be mentioned. Lord Mandelson's lawyers said police officers arrested the former ambassador to the US at his London home on Monday because of a "baseless" suggestion he was planning to "take up permanent residence abroad". Commons Speaker Sir Lindsay Hoyle on Wednesday confirmed he had passed on information to the force suggesting Lord Mandelson could be a flight risk. The BBC understands that Lord Mandelson's lawyers were twice told by the police that information about his alleged travel plans had been passed on by Lord Forsyth. On Tuesday evening, the Lord Speaker denied any involvement after he was initially reported as the source of the referral. He called the suggestion "entirely false and without foundation".…