The process of encircling a group of individuals for arrest is primarily accomplished by which formation?

The correct answer is the "Circle" formation. This formation is specifically designed for encircling a group of individuals, allowing law enforcement personnel to establish a secure perimeter around the subjects. By using this formation, officers can effectively control the situation, limit the movement of individuals within the circle, and facilitate the arrest process. The circular arrangement enables officers to maintain visual contact with all subjects and coordinate their actions, ensuring that any potential threats are managed appropriately.

Other formations serve different tactical purposes. For instance, the Wedge might be used to penetrate a crowd or breach an area, while a Line formation is effective for establishing a clear front during a stand-off or to hold a position. The Diagonal or Echelon formations are typically employed for movement or to maintain a line of sight in varied environments but are not aimed specifically at encircling individuals. Thus, the Circle is the most effective formation for the objective of encircling a group for arrest.