Teachers question whether the city will aggressively investigate itself, and there are some disturbing signs.

He was criticized by some for not aggressively investigating and prosecuting cases of corruption.

Thousands of law enforcement officials are aggressively investigating this bioterrorism attack.

Prosecutors, the critics say, lack the will to aggressively investigate inmates' complaints.

But he said: "We're going to continue to aggressively investigate and leave no stone unturned.

The Detroit case has been aggressively investigated by federal authorities since last September when the men were first arrested.

They also formed a task force to aggressively investigate armed robberies of drivers, which averaged more than 2,000 per month in the early 1990's.

They said the pact was the strongest message ever sent by the Government that pollution violations would be aggressively investigated and prosecuted.

This case shows our commitment to aggressively investigate and prosecute violators of those laws.

Navy officials say they have aggressively investigated the Schindler case as a murder, rather than as a hate crime.