scanner

When it leaves the body, it can be detected to show its size and location on a scanner.

Two additional operating theatres, and a MRI scanner to increase surgical and diagnostic capacity, were installed at Forth Valley Royal Hospital as part of the NTC project and are already up and running.

Metro officials declined to reveal the name of the vendor at a press conference on Wednesday, but the Evolv logo was emblazoned on the scanner along with the Metro branding.

For example, every 5th, 10th or 20th commuter could be asked to pass through the scanner to check for hidden weapons.

If the scanner detects a concealed firearm, Metro security officers will check whether the person has a permit before calling police to investigate, officials said.