A Hawaii drug testing company says the number of people who tested positive for marijuana and amphetamines dropped in the last quarter of 2011 compared to the same time last year.
However, cocaine usage remained the same.
The statistics were compiled by Diagnostic Laboratory Services, Inc.
The use of opiates was the only drug showing an increase.
There was also a drop in the use of synthetic urine.
See the original article at: KHON2 Developing Stories
