Each case should be investigated to the full extent possible.
At least five times during the past two years, social service workers have investigated her in response to calls to an emergency hot line.
United has been investigating significant potential changes to its corporate structure.
The university investigated everything from human rights and the treatment of women to the country's political stability.
I understand that other people are being investigated in regard to it.
They were out in the desert to investigate a possible threat to our security.
If someone is charged with something, then you ought to investigate and get to the bottom of it.
A study to investigate the influence of the Sun on recent changes to global climate is published.
We want the authorities there to investigate links to the military.
"And I'm investigating a threat to the integrity of the security systems on this station."