Any job where one is using heavy equipment, physical labor, being trusted with large amounts of money, or is legally responsible for the health of others. You know a real job.
Anyhow I think hair follicle test should be mandatory for pretty much any job. Why the fuck not, and please don't give me that personal freedom crap, if an employer is allowed to fire you for voicing an opinion on the internet they sure as hell should have a say in whether or not you do illegal drugs.
I've worked for the DOD, NASA, and a host of corporations... You know "Real Jobs"... and NEVER have I had to submit a blood test.
Piss, yes... Numerous times... but blood... Not ONCE.
So seeing as how we all now realize you have not a clue what the fuck you are talking about, I will ask again, who is the company and what is the position?
If you HAVE had a blood test for a job, then PLEASE tell us what it was, because the COST of doing blood tests is much higher than piss tests and it does not usually result in any greater information.