In fact, he would have to be held for official investigation.

Why should you think in terms of an official investigation?

Perhaps he should be the next subject of an official investigation.

Asked him if it was an official investigation, or what.

On the 8th May, an official investigation began in order to find who was responsible.

The results of the official investigation were not released until 1946.

"An official investigation" is under way, according to the statement.

An official investigation was launched by the government with the company.

This, according to them, would lead to a general call for a new official investigation into the events of September 11, 2001.

The air was still, according to the official investigation into the massacre.

"If this isn't an official investigation, why should I tell you?"

According to an official investigation, he had suffered a heart attack.

No official investigation as to the cause of Willing's death was ever performed.

You give me information now, quietly, or to the police later as part of an official investigation that will be reported to the press.

The series prompted official investigations and major changes in policy.

He was on unpaid leave and not part of the official investigation.

I'm an officer of the court pursuing an official investigation.

It was the first of many official investigations (nine in all).

The ring has been the subject of official investigation since November 2012.

In December 2006, eight people were arrested as part of the official investigation.

On 1 June 2007, news came that the official investigation had been suspended.

The evidence eventually became strong enough that an official investigation was ordered.

An official investigation into the issue was opened by the state prosecutor on April 2.

The board will decide whether to launch an official investigation over the next couple of days.

However, the results of the official investigation remained classified until the early 1990s.