But the leak inquiry was handled by a chain of investigators and private detectives reporting to company lawyers.

He was charged with lying to investigators in their leak inquiry.

They agree to send the policy back to the Ministry of Transport and conduct a leak inquiry.

A major leak inquiry was launched following that loss.

But several of the key findings were revealed before the report was officially published prompting a leak inquiry.

In the meantime, Hacker wants his leak inquiry "rigorously" pursued: something for which there is almost no precedent.

The leak inquiry in that case ended up targeting the press, and led to the jailing of a Times reporter.

"I am writing to ask you to instigate a leak inquiry to establish who was responsible for this breach of confidence."

The president did not use the opportunity to offer a public endorsement of Mr. Rove, who remains under investigation in the leak inquiry.

The State Department declined to comment on any aspect of the leak inquiry.