Arguably the most famous full moon of the year is the Harvest Moon. Police Officers and Hospital Administrators are among the staunchest believers in the Full Moon lunacy effect. They claim to see more crimes, hospital admissions, suicides, homicides, car accidents and other strange events during a Full Moon than at any other time during the Month. In the UK, a number of Police Departments even added extra Police Officers during nights with a Full Moon in order to deal with higher crime rates.
According to modern research though, this general paranoia over Full Moon effects is fictitious, but the Full Moon effect is endorsed by various Horror Movies portraying Full Moons and subsequent crimes. Humans also remember events better than lack of events, referred to by the Illusory Correlation Explanation. If something strange happens during a Full Moon, a person is more likely to remember it and also something about it. If nothing happens the night is forgotten. This accounts for how the myth is kept alive today, but does not explain how it began.
On the 29th September 1985 a Farmers son was arrested and charged with the murders of five members of his family. The only other Full Moon to fall on the 29th September was in 1966. There are no other instances from 1940 to 2012. .................. References from Moon Phases info