Motivated by the numerous prosecutions, court cases and fines the Swiss administration of justice has started or issued on incidents in Air Traffic Management (ATM), Swiss ATCA produced the attached guidance material for the its members and other involved operators and personnel (ATCOs, ATSEP and management). This version is an adapted version of the original which has been distributed skyguide internally in November 2017. Swiss ATCA hopes it is a contribution to the discussion on the delicate balance between the administration of justice and the safety world. Though embedded in the Swiss legal and operational processes, Swiss ATCA believes that this publication can serve you as an individual or as an organization in your country, though it might need some adaptions to be consistent with your operational and legal framework.