Cops should be required to pass a 250 question test about US Law. Furthermore, like many other professions, cops should only be granted a "license" to become a cop if they pass this test. Most other professions (doctor, dentist, social worker/psychologist, speech-language pathologist, nurse, etc) have to pass a test that is specifically geared toward their job. As such, cops should be required to pass a 250-question test about US Law!
No question, that every cop should know the laws they enforce.
I don't think any reasonable person can defend professional ignorance of any law enforcement officer.
BUT, let's get practical for a minute about the world we live in.
I have no idea why this guy feels compelled to video tape the police station and I think he was using a drone?
He's perfectly within his rights to do so, according to the law.
While he's under no obligation to say, it would interesting ( to me) to find out why he wants to do this.
Why?
It's possible that a terrorist could use a similar tactic and cover to launch an attack.
IF that happened everyone would demand to know how it could happen.
The media would delve into an investigation and demand answers.
In my opinion, this cop was just trying to do his job and be proactive.
Of course, we have the side of civil liberties that defends the video taker.
That's sound good, UNTIL the shit hits the fan and someone gets attacked.
THEN, these same folks demand the cops be proactive and help prevent attacks in advance.