Why do you need a drug testing policy at every business? 9 times out of 10 anyone can tell when a person is "loaded", so why does their place of work need to know if they like to smoke a joint every now and again at home? Why should that be important as long as they aren't coming to work inebriated? As long as they aren't doing anything on the job then why is it important for a business owner to know what they do at home?
What someone does at home can have a direct impact on their job functions as well as endanger those they work with. Party one night at home and return to work the next day, or even days after or weeks after, could have deadly consequences. Even marijuana can stay in your system up to 45 days (give or take depending on your body weight, tolerance, etc.)
I will continue to test my employees.
“When one gets in bed with government, one must expect the diseases it spreads.”
― Ron Paul