What is necessary for officers to legally detain and frisk persons on the premises during a search?

The correct choice highlights that for officers to legally detain and frisk individuals on the premises during a search, those individuals must have a connection to the premises. This connection typically implies that their presence there is relevant to the investigation or search being conducted.

In the context of law enforcement, this connection can take various forms, such as being present in a suspected area of criminal activity or being associated with individuals believed to be engaged in unlawful acts within that location. When officers are allowed to detain individuals who have a legitimate link to the premises, they are acting within their rights to ensure the safety of the situation while fulfilling their investigative duties.

Having a warrant is often a foundational legal requirement for searches, but there are circumstances where officers conducting a search don’t have a warrant, especially if exigent circumstances exist. Probable cause is another legal standard that pertains to officers' ability to make arrests or conduct searches but isn't directly tied to the connection of individuals on the premises during the active search. Additionally, calling for additional units may be a tactical decision but is not a legal necessity for detainment and frisking.

By understanding the importance of the connection between individuals and the premises, individuals studying this area of law can better grasp the nuances of legal detainment