There were more things to investigate in the living room.

It has also been investigated for use in the treatment of cancer.

The police don't investigate and find the criminal in 22 minutes.

At least five times during the past two years, social service workers have investigated her in response to calls to an emergency hot line.

I didn't have sense enough to do any investigating in a public library on my own.

"Why are you investigating a murder out here in the county?"

To investigate in those conditions would have been most dangerous.

"We haven't had any to investigate in a long time."

She was also investigated in 1922 and the result of the tests were negative.

Many cases investigated in 2008 were closed due to lack of evidence.