At Hondo Ohnaka's pirate outpost, Anakin Skywalker and Obi-Wan Kenobi undergo a weapons check.
A form of security scanner was the weapon detector, also known as a weapon-detector or weapon scanner. These devices scanned for telltale signs of concealed weaponry, including the presence of metals, composite ceramics, power cells, and traces of blaster gas.
The data gathered by a sensor designed to identify power cells and other typical weapon components was sent to a computer for near-instantaneous analysis. While weapon detectors could identify most weapons, some, often those utilized by professional bounty hunters, assassins, and spies, were designed to avoid detection by standard scans.
Weapon detectors saw widespread use in areas with restricted access, like military installations, spaceports, prisons, detention facilities, and other secure locations. Their function was to stop the introduction of unauthorized weapons into these secured zones. The Corporate Sector Authority employed numerous weapon detectors to enforce order on planets like Bonadan.