Inspect carry-on items, using x-ray viewing equipment, to determine whether items contain objects that warrant further investigation.

Search carry-on or checked baggage by hand when it is suspected to contain prohibited items such as weapons.

Check passengers' tickets to ensure that they are valid, and to determine whether passengers have designations that require special handling, such as providing photo identification.

Test baggage for any explosive materials, using equipment such as explosive detection machines or chemical swab systems.

Perform pat-down or hand-held wand searches of passengers who have triggered machine alarms, who are unable to pass through metal detectors, or who have been randomly identified for such searches.

Notify supervisors or other appropriate personnel when security breaches occur.

Send checked baggage through automated screening machines, and set bags aside for searching or rescreening as indicated by equipment.

Decide whether baggage that triggers alarms should be searched or should be allowed to pass through.

View images of checked bags and cargo, using remote screening equipment, and alert baggage screeners or handlers to any possible problems.

Locate suspicious bags pictured in printouts sent from remote monitoring areas, and set these bags aside for inspection.