Contractors: Monitoring Mark Pritchard 13. To ask the Chancellor of the Exchequer what contractual mechanisms HM Revenue and Customs has in place to monitor the effectiveness and efficiency of private sector organisations to which it has contracted out work. Jane Kennedy HMRC employs a wide range of procedures for monitoring the performance of private sector contractors, on a contract-by-contract basis, following HMRC’s good practice guidance. Professionally qualified commercial specialists manage these contracts, which are kept under review.