But faced with a growing number of complex investigations, private agencies have adopted modern practices.

A complex legal investigation is under way to determine responsibility.

Whether the commission recognizes it or not, the first settlement in a complex investigation always sets the tone for what follows.

In his career he found equivocal death crime as the most dubious and complex investigation to overcome.

These law enforcement officers conduct complex investigations and have the ability to make arrests statewide.

Republicans who control the committee said today's votes were needed to begin collecting documents for a complex investigation that could take many months.

She has been involved in more than 50 jury trials and a number of complex investigations.

Penetrating injuries often require surgery, and complex investigations are usually not needed to come to a diagnosis.

He said the fine was "a just and appropriate resolution of this very complex, and in many respects unique, criminal investigation."

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