Like military recruiters, police recruiters have had legal attacks launched at their recruiting criteria and background checks. Restrictions of the past about an applicant's drug use, sexual habits and youthful encounters with the police have been liberalized in some jurisdictions. Background investigators asking questions about this past personal information is now sometimes taboo. To this liberalized tolerant attitude, add the pressure of departments trying to fill open positions and empty academy classes.
Just as in the military ranks, this has lead to unworthy applicants entering the law enforcement ranks. Too often, sexual predators and drug addicts have been found wearing badges. While this has always been a problem, today's "anything goes" culture and less-than-rigorous recruiting and background procedures have exacerbated the problem.
More troubling than a few addicts and perverts among us is the waving of past "minor criminal contacts" as a means of qualifying candidates who have histories of associating with criminals and gangs, or who've been in trouble with the police themselves. I'm not as smart as an FBI criminal profiler, but I've been taught that past behavior is the best predictor of future behavior.
There seems to be another phenomenon at work. Talking to other seasoned professionals working in the prison system, I've heard these same troubling observations expressed. Some law enforcement officers working in the custody facilities seem to be adapting the look, language and attitude of the inmates they supervise.
The whole gang culture seems to be creeping into regular society. Back in the 1950s and '60s, pirates were the only men who wore earrings. Crips began wearing one earring to identify them in this new and different way. Now, it's hard to find men who don't wear one or even two earrings. Gang members started the sagging baggy pants look, wore baseball caps backwards, started shaving their heads, and tattooed their bodies with prison-like emblems. Today these "styles" have been adapted by young people in all walks of life.