As part of a multi-law enforcement crackdown on crime in an area of the city encompassing the square made up of 17th and 31st avenues and Olive and Hazel streets, the Jefferson County Sheriff's Office has set up its mobile command center tower at the corner of 26th Avenue and Olive Street. Both the JCSO and the Pine Bluff Police Department have stepped up patrols in this area following a homicide more than a week ago and a shooting incident.