The measure will take effect on Oct. 16 as part of efforts to strengthen aviation security in line with international standards, The Nation reported.

Under the new rule, if security officers have reasonable grounds to suspect that a checked bag contains explosives, prohibited items, dangerous goods or other items not allowed on aircraft, they are authorized to open the baggage for inspection.

Tourists queue to check in for their flights at Don Muang International Airport in Bangkok, Thailand, Dec. 26, 2016. Photo by Reuters

If restricted items are found, officers may confiscate them without returning them and take further action in accordance with relevant laws, regulations or procedures.

CAAT recommends that passengers use approved locks, such as TSA Locks, to facilitate security inspections without damaging their luggage. However, if baggage cannot be opened, authorized personnel may break the lock or locking mechanism to conduct the inspection, with no compensation provided for any resulting damage.

The authority also advises passengers to check not only their baggage weight but also whether all items inside are permitted for checked baggage before checking in, in order to avoid complications and delays during their journey.