I do wonder if the quality of our police forces is deteriorating. That there are more officers that are not of the calibre that we would like and that it is getting harder for a good officer to maintain high standards of professionalism.
I often wonder about that myself. When I took the test to get hired in Norfolk, VA 19 years ago, I was one of 2700 that applied that year with 82 getting hired if I remember correctly. When I came out to the Pacific NW, I was in the Oregon Convention Center with 3100 other applicants, and was one of 60 that got hired.
This year, we've had 240 people apply. We need to hire 150. Therein lies the crux of your question IMO.
There are many factors creating this. The media helps (hurts). Think about it, who
wants to be a cop today with the negative publicity the profession is getting? Even when officers do exactly what they're trained to do, the media jumps on the negative result rather than the cause. "Officer shoots and kills motorist" is the typical headline when a wanted felon stopped for running a red light draws a gun and tries to shoot the officer.
Plus, the options available to people coming out of college (we still require college to get employed) are plentiful. Let's see, do I want a $60k/year job as a cop that's hated by the media but respected by the silent majority that's too afraid to speak up in support, or the $85k/year job at Intel or Nike where my personal life isn't on the front page of every paper, internet forum and YouTube web site when I do my job properly but happens to have a bad result?
Additionally, even though this is stereotyping, but GenX and younger kids coming into police work don't see it as a career, but rather a job. Ask an academy full of officers today how many expect to retire from the job, and you're likely to get less than 25%. That alone scares the bejeebers out of me.
There are countless other reasons for the lack of interest in police work, but it does beg the question you ask, and I'm not sure anyone's actually asking it when it comes to recruiting, etc.