Which type of search cannot substitute for a full search?

The BOSS chair search is specifically designed to detect contraband in a non-intrusive manner, primarily focusing on items hidden in clothing or on a person's body while seated. This method, while useful, does not offer the same thoroughness as a full search, which entails a comprehensive and detailed examination of a person or their belongings. A full search aims to ensure that any and all contraband or weapons are discovered, something that a BOSS chair search cannot achieve on its own since it has limitations in accessing areas that may conceal items.

In contrast, a strip search or a pat down search provides varying degrees of physical examination to uncover concealed items. A strip search is highly invasive and aims for a complete search of a person's body, while a pat down, though less invasive, is intended to quickly assess if there are weapons or contraband on a person's outer clothing. A visual inspection may help identify obvious contraband but lacks the thoroughness required to ensure no items are hidden. Thus, among these options, the BOSS chair search cannot stand in for a full search due to its inherent limitations in depth and effectiveness.