Copyright and moral rights to this thesis/research project are retained by the author and/or other copyright owners. The work is supplied on the understanding that any use for commercial gain is strictly forbidden. A copy may be downloaded for personal, non-commercial, research or study without prior permission and without charge. Any use of the thesis/research project for private study or research must be properly acknowledged with reference to the work's full bibliographic details.This thesis/research project may not be reproduced in any format or medium, or extensive quotations taken from it, or its content changed in any way, without first obtaining permission in writing from the copyright holder(s).If you believe that any material held in the repository infringes copyright law, please contact the Repository Team at Middlesex University via the following email address:eprints@mdx.ac.ukThe item will be removed from the repository while any claim is being investigated. Abstract: There is an increasing recognition of the need to provide ways for people to raise concerns about suspected wrongdoing by promoting internal policies and procedures which offer proper safeguards to actual and potential whistleblowers. Many organisations in both the public and private sectors now have such measures and these display a wide variety of operating modalities: in-house or outsourced, anonymous/confidential/ identified, multi or single tiered, specified or open subject matter etc. As a result of this development, a number of guidelines and policy documents have been produced by authoritative bodies. This article reviews the following five documents from a management perspective, the first two deal with the principles upon which legislation might be based and the others describing good management practice: