Visitors view a police armoured car made in China at the Second China International Exhibition on Police Technologies & Equipment in Beijing June 23, 2004. The expo was opened Wednesday, attracting more than 240 enterprises from 20 countries and regions.

People visit the booth of a European helicopter company at the Second China International Exhibition on Police Technologies & Equipment in Beijing June 23, 2004. The expo was opened Wednesday, attracting more than 240 enterprises from 20 countries and regions.

Visitors view a police armoured car made in China at the Second China International Exhibition on Police Technologies & Equipment in Beijing June 23, 2004. The expo was opened Wednesday, attracting more than 240 enterprises from 20 countries and regions.