It’s tempting to say Craig Friesen of the Anaheim Police Department wrote the book on how to police human trafficking. And it’s not that much of a stretch. The police veteran, now a captain, was in the vanguard of police that led a sea change in how law enforcement viewed and handled prostitution. They helped lift consciousness about the crime as more than just a victimless street crime; that many of the women working the streets were unwilling victims forced into the trade by pimps and handlers. “We really changed the way police departments approach human trafficking and the way…