As an investigator and in particular, when I was working as an operational asset for the FBI in the 1990s, I was particularly good at securing covert video like that captured by the Center for Medical Progress of Planned Parenthood. In fact, I was used because I could convincingly present myself to the subjects of investigation as someone I was not, and secure the needed evidence that served as the basis for immediate raids, arrests and sometimes later, as courtroom exhibits for a jury to see.
It was common for the audio and video to be remotely monitored in real time by a team of law enforcement officers, including the FBI, in a vehicle usually parked around the corner from where I stood. In those cases, once the necessary evidence was memorialized, I had to mentally brace myself, for I knew what was about to happen.