Well, as GOP state Rep. John Kavanagh Arizona Sonora News Service, "If you want to be a pessimist, you say it's failed. If you want to be an optimist, it's a strong deterrent and they're not using drugs,"
Or, it could be that people with no money don't have any money for drugs, and/or most of them don't do drugs in the first place.
The 87,000 people and one failed test, that was just for the first three years of the program in Arizona. All totaled from 2009-2014, of 142,424 tested, three have failed the test, plus another 23 who refused and were relieved of their benefits. So you could speculate that those 23 (or a large percentage of them, anyway) might have failed the test if they'd taken it. So taking the most liberal stance (sorry, couldn't help it), that's as many as 26 over 5 years. I''m sure that's very disappointing to those who think drug testing will save $1.7 million a year.
I agree that just 1 out of 87,000 seems like a really low number, but then again if you tested 87,000 Jehovah's Witnesses, or Scientologist, or Seventh Day Adventists, that 1 number would seem shockingly large.
It could be an aberration in Arizona, as other states who test have not had such a low number. Well, except for Mississippi, which has had 2. But all of them are testing at a rate lower than the general population. It could be the deterrent, or it could be that people with no money tend to use drugs at a lower rate. Well, except for Oklahoma, where they were very nearly at the national average.
State Tested Failed
MO - 38,970 - 48
OK - 3,342 - 397
UT - 9,552 - 29
KS - 2,783 - 11
MS - 3,656 - 2
TN - 16,017 - 37
AZ - 142,424 - 3