What initial step should an investigator take when starting a complaint investigation?

The initial step an investigator should take when starting a complaint investigation is to contact the complainant. Engaging directly with the complainant allows the investigator to gather crucial firsthand information about the complaint, understand the context, and clarify any specifics related to the incident. This direct communication is vital because it sets the foundation for the investigation and helps establish details that may not be readily available from other sources.

By speaking with the complainant, the investigator can ask questions that may uncover additional evidence or perspectives, which are essential for a thorough and fair investigation. This step acknowledges the importance of the complainant's experience and perspective, ensuring that their concerns are prioritized and addressed effectively.

The approach focuses on establishing a clear understanding of the complaint before moving on to other steps in the process, such as reviewing previous cases, contacting the officer involved, or preparing documentation. These subsequent steps are important but should occur after the initial contact with the person who lodged the complaint, as the complainant's account provides vital context for those actions.