I was doing some early research on the temperance movement and prohibition in the United States for a possible novel set amid the same conflict.
Still considering it. The time period is rife with change and conflict, the perfect backdrop for a murder.
But one recent statistic, tacked onto the end of a wikipedia article, jumped out at me:
In 2010, alcohol is a factor in over 23,000 motor vehicles deaths and over 50% of the murders in the country.
Those of us who write mysteries look for interesting cases--compelling motives, intriguing suspects. But the truth of the matter is that most murders, tragic though they be, are simple. Some fool got drunk and killed his wife, girlfriend, kid, landlord, cousin, fill in the blank.
Hmmm.... the temperate detective?