John Thompsons Corporate Investigations for Nonsecurity Professionals aims to ensure that information is collected in a reliable and legally responsible manner. The objective of a security investigation is to get the facts so that a resolution of the complaint and situation can be achieved. An investigation is not something that should be done haphazardly or without a clear plan in mind. Every part of an investigation might later be subject to scrutiny, every part of the investigation should be documented, including the up-front planning process.”]
Source: https://www.csoonline.com/article/2122434/how-to-plan-an-investigation.html