What type of documentation should a private investigator always keep?

Keeping detailed logs of investigations is essential for a private investigator as it serves multiple critical functions in their work. These logs document the daily activities, findings, and methodologies used throughout the investigation. This level of detail helps ensure that all relevant information is captured in a timely and organized manner, which can be crucial when providing evidence in court or when discussing findings with clients.

Additionally, maintaining detailed logs supports accountability and transparency in the investigator's practices. It helps the investigator track their own progress and evaluate the effectiveness of their strategies, which can improve future investigations. The logs can be valuable during case reviews and may also be requested by clients as proof of diligent work.

While reports summarizing cases, invoices, and personal notes are relevant in various aspects of a private investigator's work, they do not provide the same comprehensive, day-to-day documentation that detailed logs offer. This comprehensive documentation not only strengthens the integrity of the investigator's work but also aids in professionalism, which is important for maintaining client trust and complying with legal standards.