CHS SEA Investigation Training
CHS Alliance offers training for SEA investigators. You can find out more information here: https://www.chsalliance.org/get-support/training/investigations-workshop/
InterAction: Critical Elements To Manage An Investigation
InterAction: Investigation Planning Tool
InterAction: Investigation Report Outline
InterAction: Principles of Investigation
Office of Internal Oversight Services: Investigations Manual 2015
This document is an investigations manual from OIOS. It is from 2015 and may be out of date, but may serve as a useful reference for organizations looking to learn more about investigations.