What must be documented by an investigating official within three business days of receiving a complaint?

The requirement for an investigating official to document all contacts with the complainant within three business days after receiving a complaint is critical to ensuring transparency, accountability, and thoroughness in the investigation process. This documentation serves multiple purposes. It creates a clear record of all interactions that might influence the investigation and ensures that no details are overlooked over time. Such diligence helps establish a timeline of the complaint, clarifies the complainant's concerns, and aids in maintaining the integrity of the process.

In contrast, while documenting the date of the complaint, the specific complaints against the officer, and meetings held with the department are important, they do not directly capture the ongoing communication and engagement necessary for a thorough investigation. The emphasis on recording contacts with the complainant highlights an approach that prioritizes communication and ensures that the complainant's perspective is fully considered throughout the investigation process.