The exploratory study looked in depth at four of the nine demonstration sites prior to conducting a program effects evaluation.

Police officers searched everyone who entered the demonstration site.

"I hope that our school will become a demonstration site for teachers from across Maine and the country," she said.

The Campus will serve as a demonstration site for green technology, energy efficiency, and environmental sustainability.

(To see how it would work, visit the company's demonstration site, www.therightcolor.com.)

The network could be at demonstration sites in the first half of next year, the company said.

Through experiment and action we hope to serve as a demonstration site for local residents, communities and visitors from abroad.

Some riot police stood on hand at the demonstration site Monday.

It was meant only as a demonstration site and was dismantled after several successful years of operation.

Under one proposal a demonstration site chosen for cleanup would receive $300 million over three years.