One of the myriad of tasks performed by private investigator is to interview individuals from all cultures and walks of life. The interview may be to gather details from a material witness, collect background information, or detect deception from a potential fraudster. Whatever the circumstances, cosmetic procedures such as plastic surgery and Botox are altering an investigator’s ability to interpret key facial expressions. Tune in to head Los Angeles Private Investigator Catherine Townsend discuss this important development and her observations.