Investigations

Noun injury to the brain caused by a blow to the head
Police are investigating a violent ice hockey impact where one player was left with severe concussion and a cracked vertebra after another slammed him into a glass partition.
Noun feelings of fear or disgust
Law enforcement agents often use dermestid beetles to expose skeletons when chemicals might damage evidence. The insects might give you the creepy-crawlies, but they are a great tool in forensic investigations.
Verb containing in abundance or excess
We know going in that CIA tracker Maya will prevail. But the hows and whys make Zero Dark Thirty, freighted with the history of the hunt for Osama bin Laden, a riveting investigative procedural.
Noun action of one object forcibly hitting another
Montreal police are investigating a violent ice hockey impact where one player was left with severe concussion and a cracked vertebra after another slammed him into a glass partition.
Noun most important person in a group or undertaking
Russian authorities say they launched a criminal investigation of Igor Gusev, a suspected spam kingpin thought to be behind the site SpamIt.com.
Verb commit or be responsible for something
In the year 2035 a techno-phobic cop investigates a crime that may have been perpetrated by a robot, which leads to a larger threat to humanity.
Verb fall heavily, especially head first
Investigators are still trying to figure out what went wrong when a modified World War II era plane pitched into the crowd during a Reno airshow.
Verb follow someone or something in order to catch or attack them
Peter Knight, a member of the Private investigative firm, pursues a murderer who is trying to destroy the London Olympics.
Verb produce again
Over their long lives, an alligator may regenerate something on the order of 4,000 teeth. So a team of researchers from the U.S., China and Taiwan performed a detailed investigation of alligator teeth to learn their secret.
Noun focus of public attention
The woes of the Boeing's 787 Dreamliner, which was recently grounded, are drawing an unwelcome spotlight for the Japanese maker of the powerful lithium-ion batteries that have become the focus of investigations.