I don’t know about that. Big city police, and everywhere really, were rife with corruption 50 or 60 years ago. Doesn’t even begin to compare to today, although crime fighting tech and cameras probably keep them in line more than any change in government or public attitudes.
Corruption and graft yes, but what we see today is not typical corruption and graft, what we see today is ideological conformity, the cops are now almost all woke people who believe their job is to represent elected tyrants, and they believe anyone whom is not communist is a racist, bigot and a nazi.
You’re trying to compare apples and oranges as to the type and amount of corruption from that long ago to now. Today it is a much different kind of corruption (ideological) and it is much more wide-spread.
I am not completely disagreeing with here, I just make a distinction between the typical graft and corruption that has always been a part of policing in big cities and with what we see today, the complete ideologica corruption of turning entire police forces against patriotic people who support the Constitution.
Can you see the difference?