DNA fingerprinting has proved the clincher in this investigation.

DNA指纹已为此项调查出示了铁证。

《柯林斯英汉双解大词典》

I want to make it clear, however, that no one is untouchable in this investigation.

但是，我想说清楚，没有人可以免于接受这次调查。

《柯林斯英汉双解大词典》

This is attested once again in this investigation.

本次调查也准确地证明了这一点。

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The U.S.Federal Bureau of Investigation and other federal law enforcement agencies are providing assistance to Mexican authorities in this investigation, but they have declined to comment on the developments in Mexico.

VOA: standard.2010.04.01

Federal agents and local El Paso authorities have targeted the Barrio Azteca gang in this investigation, detaining some two dozen gang members on warrants issued against them for other crimes and also questioning them for leads in the case.

VOA: standard.2010.04.01

Boston Police Commissioner Edward Davis. "As soon as there was a nexus to Boston in this investigation, we began to send additional information out to all of our patrol officers - information about IEDS, information about VBEDS, vehicle-borne explosive devices."

VOA: standard.2010.05.14

There are many threads in this investigation that have still to be fully explored.

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But what heartens U.S. officials is that the Iraqi Ministry of Defense took the lead in this investigation.

NPR: Dozens of Iraqi Army Men Arrested in Killings

An interesting detail I learned about the company in this investigation is that they actively promote green practices.

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