Hand and iris scanners introduced on Olympics

Biometric security measures have finally been introduced on Olympic sites.

Machines capable of hand and iris recognition will be installed at entry points around the 2.5 sq km site this week, according to the Observer.

The hand scanners are capable of checking up to 5,000 workers an hour and will be used alongside photographic smart cards. The iris-scanning system will be available as an alternative when required.

All site workers, as well as contractors building bridges, roads and utility networks around the perimeter, will be subject to the new security measures.