The phrase "attack investigators" is correct and usable in written English.
It can be used in contexts discussing individuals or groups who are investigating a situation or event, particularly in relation to an assault or aggressive action against them.
Example: "The authorities are concerned about the recent trend of individuals attempting to attack investigators who are probing into organized crime."
Alternatives: "assault investigators" or "target investigators".
But in about half of those, including the November attack, investigators determined that the attackers did not act on behalf of insurgents, as often claimed by the Taliban, but for a combination of other reasons, including battlefield stress and personal animosity against coalition soldiers.
Even as they investigated the Ohio State University rampage as a possible lone wolf attack, investigators were trying to assemble a full picture of Artan's associates and recent activities, according to federal officials.
A week after the attack, investigators had 96,000 leads.
In the days and hours before the attack, investigators found, he performed Internet searches on suicide bombings and jihad.
The hijackers in the 1995 plot carefully analyzed commercial air routes before targeting certain flights for attack, investigators said.
Before the Djerba attack, investigators say, Nizar Nawar traveled to diverse parts of the world including Afghanistan and Montreal.
During the attacks, investigators say, Mr. Muhammad and Mr. Malvo requested $10 million to stop the killings.
Just hours before the September attacks, investigators say, this Mr. Ahmad wired about $10,000 to Mohamed Atta for car rentals, hotel rooms and other expenses.
Although the contaminated letters referred to the Sept. 11 attacks, investigators have said they think the mailings are of domestic origin.
After the attacks, investigators did obtain access to Moussaoui's computer, where there was information about crop dusting but nothing to suggest that he was involved in the September 11th attacks.
During the attacks, investigators said, some members of the group went to the apartment, beat the older brother and stole $1,000, debit cards and a 52-inch television set.
