POLICE are to reopen an investigation into “cash for honours” after the Liberal Democrats’ three biggest donors received peerages.

The trio, who were nominated by Deputy Prime Minister Nick Clegg, handed over £600,000 — 40 per cent of all donations to the Liberal Democrats in 2012.

It was flagged up to the Metropolitan Police by Scottish National Party MP Angus MacNeil. The cash for honours file is understood to have been passed to Commander Graham McNulty in the Met’s specialist crimes and operations directorate.