His course is the ideal setting to teach about the deceptions that psychics have historically used to fool the cops and themselves. Strangely, he has chosen to perpetuate pseudoscience. Sadly, the CIA has been a sucker for psychics ever since it saw footage of a Soviet woman performing telekinesis on some matchsticks in the 1970s. Princeton and Duke have been rubber-stamping crackpots for decades. In 1979, the Los Angeles Police Deptartment did a serious study of psychic investigators.
Psychic investigators work in the same obvious ways that tabloid psychics do.
The wrong statements are forgotten, though they far outnumber the correct ones. Of course, there is the obvious problem that psychic detectives keep their own score. When our hypothetical vandals are caught, it may be that there were three white guys and a girl. Well, the girl had short hair and could be mistaken in the cloudy vision for a guy and the other guy was in a getaway car parked around the corner. He scores himself another point.