What is the primary difference between a frisk and a full custodial search?

The primary difference between a frisk and a full custodial search lies in the scope and purpose of each action. A frisk is a brief, limited pat-down of a person's outer clothing, conducted specifically for the purpose of locating weapons that could pose a threat to the officer or others. The intent behind a frisk is to ensure safety, based on reasonable suspicion that a person may be armed and dangerous.

In contrast, a full custodial search is much more comprehensive. It involves thoroughly examining not only the person but also their immediate area, with the goal of locating any contraband, evidence of a crime, or additional weapons. This type of search can occur when an individual is taken into custody or when there is probable cause to believe that evidence is present.

By understanding this distinction, one can appreciate why the first option accurately describes the fundamental differences between the two procedures. The emphasis in a frisk is on a limited search for weapons, whereas a full custodial search is extensive and seeks to uncover a broader range of potential items related to criminal activity.