The first step is an internal investigation by the hospital.

But these were internal investigations, and the public wasn't told about them.

Officials learned about the material last week and conducted an internal investigation.

The results of the internal investigation are to be filed with the court this week.

They also changed management and initiated an internal investigation of its problems last year.

He had been fired on 14 June after an internal investigation.

No internal investigation within the agency is going to be seen as credible.

During the course of last year much attention focused on the 27 internal investigations in the Commission.

Internal Investigation doesn't tap it any more, if that's what you mean.

I imagine the internal investigation will uncover where he got the money.