One example: a joint investigation into claims by companies that their products are environmentally beneficial.

The city will also receive half the fine, with the other half going to the state because of the joint investigation.

For the first time, they were willing to allow joint investigations.

County Detectives often work joint investigations with federal, state and other local law enforcement agencies.

As of October 14, 2010, all 50 states have entered a joint investigation into the mortgage industry.

The arrests capped a joint investigation involving county, state and federal officials.

United States law already allows joint investigations with foreign governments of criminal and securities cases.

Today, the federal and city police forces announced a joint investigation into the shooting.

"Our joint investigation quickly identified those students and staff that would benefit from preventive testing."

For example, she developed a program to work with Canada on joint investigations.