In law enforcement, a manhunt is an extensive and thorough search for a wanted and dangerous fugitive involving the use of police units, technology, and help from the public. A manhunt is conducted when the suspect believed to be responsible for a serious crime is at large and is believed to be within a certain area. Any police units within reach of the area will then participate in the search, each covering parts of the area. The officers will, if possible, form a perimeter around the area, guarding any and all possible escape routes from the containment.