Steady growth in Mandan in recent years has brought an uptick in crime.

The Bismarck Tribune reports the city's police experienced an 18 percent increase in calls for service between 2015 and 2016. Drug offenses were up statewide, but they spiked in Mandan by 43 percent last year.

Assaults in the city also were up, by 33 percent. Local patrols took a hit during the months-long Dakota Access oil pipeline protests because local officers were often called out to help.