Port Columbus International Airport in Ohio, US, will complete a $35m in-line bag system by early December 2011.

The new system features a conveyor belt that will take luggage from ticket windows to Transportation Security Administration screeners.

The luggage will then be dropped down a conveyor where they can be searched by hand or by high-resolution computers.

The baggage system has an elevator that allows the bomb squad’s robot to enter the conveyor to search a suspicious item of baggage.

The system is already being used by US Airways, Continental and Southwest Airlines, and other airlines will start using them in January 2012.