Under cross-examination, however, she conceded she had no contract with Christianson, the company that supposedly was her general contractor, and there was no proposal or bid, and that when she bought hardware for the kitchen she sent it not the Christianson but to one of Allen's employees at Allen's corporate offices.

NPR: Sen. Stevens Will Be Back On The Witness Stand

It said it wanted an examination of the nature of the relationship between Mr Wallis and Mr Fedorcio and the circumstances under which the contract was awarded.

BBC: Phone hacking: IPCC to probe Met press chief Fedorcio