The investigation centered on allegations in a lawsuit filed by a former player.

This investigation took place from 1999 to 2000 and centered on accounting practices for the company's many acquisitions, including a practice known as "spring-loading."

The ensuing investigation has centered on who leaked her name to Novak.

Law enforcement officials said the investigation was still in a preliminary phase, centering on securing and examining company financial records.

After that revelation, the investigation had centered almost completely on him.

His early investigations centered on the unusual chromosome structure of dinoflagellates.

Later investigations have centered around the settlement of Baking Pot.

The investigation is centering on a handful of international terrorist groups.

This investigation centered mainly on size- and shape-selective clathration.

Douglas must have been worried that the investigation was centering too closely around him.