This post has been removed as it has been superseded by the post How to write transparent investigation reports.
I would like to thank Donna Boehme of the Compliance Strategists for comments on 8 Steps to ensure your investigation does not appear to be a coverup as I have used them to revise the post. Any remaining mistakes are my own.
Compliance Strategists are a leading consulting firm based in the metropolitan New York area, specializing exclusively in compliance, ethics, risk and governance practice. http://www.compliancestrategists.com/