While the frequency of violent crimes and drug-related offenses increased, Idaho's overall crime rate dipped 1.5 percent in 2012, led by a decrease in assaults, according to the Idaho State Police's annual report, Crime in Idaho, published July 2.
The City of Boise saw a 14.1 percent drop in arrests compared to 2011. In a span of five years, total arrests dropped from 9,485 in 2008 down to 6,984 total arrests in 2012.
Overall, Ada County, which experienced a 12.6 percent drop in arrests compared to 2011, had the 10th highest crime rate in the state—5,012 offenses per 100,000 people.
Kootenai County had the highest crime rate in Idaho, followed by Nez Perce and Valley counties. Butte County had the lowest reported crime rate.
According to the report, a murder occurs in Idaho every 13.5 days, an aggravated assault every 3.5 hours, a drug offense every 1.1 hours and a crime against property every 11.1 minutes.