Say what you will about Lott, but he really points out the obvious in this article:
Guns and the New York Times: Why shouldn’t Americans be able to defend themselves?
So how law-abiding are police? With about 570,000 full-time police officers in the US at that time, that translates into about 124 crimes by police per hundred thousand officers. For the US population as a whole over those years, the crime rate was 31 times higher — 3,813 per hundred thousand people.
Perhaps police crimes are underreported due to leniency from fellow officers, but the gap between police and the general citizenry is so vast that this couldn’t account for more than a small fraction of the difference.
Concealed carry permit holders are even more law-abiding. Between October 1, 1987 and January 31, 2015, Florida revoked 9,366 concealed handgun permits for misdemeanors or felonies. This is an annual rate of 12.5 per 100,000 permit holders — a mere tenth of the rate at which officers commit misdemeanors and felonies. In Texas in 2012, the last year the data is available, 120 permit holders were convicted of misdemeanors or felonies – a rate of 20.5 per 100,000, still just a sixth of the rate for police.
Firearms violations among police occur at a rate of 6.9 per 100,000 officers. For permit holders in Florida, it is only 0.31 per 100,000. Most of these violations were for trivial offenses, such as forgetting to carry one’s permit. The data are similar in other states.