Attorney Luke Bulpitt of the specialist crime division said today that former deputy property manager, Ron Harper, is accused of taking bribes between 2006 and 2011 from firms providing maintenance, heating and electrical services.
Bulpitt says that the firms were awarded large contracts at the palaces.
Two of the firms later received "Royal Warrants" an honorary stamp of approval for companies which regularly supply goods and services to the monarch, the Duke of Edinburgh or Prince Charles.