[…]
A
study reported in 2016 was careful to make a distinction between indoor and outdoor crime committed in 13 U.S. states and the District of Columbia in 2014.
The authors found no link between lunar phases and total crime or indoor crime.
But they did find the intensity of moonlight to have a substantive positive effect on outdoor criminal activity. As moon illumination increased, they saw an escalation in criminal activity.
One explanation for this finding is what is referred to as the "illumination hypothesis"—suggesting that criminals like enough light to ply their trade, but not so much as to increase their chance of apprehension.
It may also be that there is greater movement of people during lighter nights, thus providing a bigger pool of victims.
Why do some people still cling to the belief that the Moon causes criminal or other antisocial behaviour? The answer most likely lies in human cognition and our tendency to focus on that which we expect or predict to be true.
[…]
Beliefs in the Moon's behavioral effects date back to ancient times. But what evidence is there that the Moon has an impact on crime?
www.newsweek.com
First time I’ve looked up any studies on this, but have always heard about the increase in crime and ER visits during full moon.
Having been a bartender for 40-something years, I definitely know it affects people’s behavior!
JMO