Still, the levels of illegal drug use were below those found in the late 1970's and 1980's.

I thought that was "Illegal use of hands to the face".

We're working on the problems caused by illegal drug use.

Approximately 17% of them test positive for illegal drug use.

Contrary to what you say, the general level of illegal drug use has indeed changed in 10 years.

He called it an illegal use of the grand jury process.

In general, the most recent data indicate a trend away from illegal drug use among Americans.

Illegal use of hands penalties are increased from five to 10 yards.

But city officials said yesterday that the death resulted from illegal drug use, not a lack of care.

After the age of 25, illegal drug use diminishes quickly, he said.