The OHS professional must be able to identify the full range of documentary evidence that would support a legal defense, including documentation that may not be directly OHS-related (e.g. maintenance records). In order to substantiate claims regarding OHS performance and activities, the OHS professional should be able to demonstrate their own competency and expertise in the field of OHS, including citing specific training, education, and professional development that supports the professional’s claim to expertise. Depending on their level of responsibility within an organization, the OHS professional may need to be able to work collaboratively with the legal teams tasked to build a defense.