Much of her work involved investigations into bacteria-induced plant disease.

Hansen's work in Athens also involved archeological excavations and investigations.

The timing of recent critical reports by the United States appears to have been coincidental, involving investigations that were many months in the making.

Previous studies have involved investigations of cancer of the brain.

Others are not uniformed and work in administrative duties involving limited investigations.

This involves conceptual and textual analysis as well as experimental investigations.

The Columbia inquiry involves investigations by grand juries in several states, people familiar with the investigation said.

(The government's requests in the three cases, with their details, were sealed because they involve investigations still under way.)

Identifying the sites and closing them can often involve complex investigations and legal action.

His later works have often involved investigations into powerful organizations, such as the Catholic Church or the United States military.