The investigation was not closed until the summer of 1967.

Still, the company continued to fight after the investigation was closed.

As of August 2011 the investigation is still not closed.

Ten months later the investigation was closed for lack of evidence.

These questions should be answered before the investigation is closed, he thought.

These investigations are now closed with "no case to answer."

An investigation by the state's child welfare agency was closed six days before he died.

Records must be produced within three weeks after an investigation is closed.

On January 31, 2013, the investigation was closed without charges.

On 5 March 2013 this investigation was "closed for lack of crime".