Minnesota allows employers to require applicants and employees to take drug tests, but only in certain circumstances. An employer may request or require a job applicant to undergo drug and alcohol testing provided a job offer has been made to the applicant.Under Minnesota law, a statute has been adopted that protects workers who are required to take drug and alcohol tests in the workplace. MN law does not allow testing for THC yet a MN company is clearly saying they will continue to test for it and there are no alternatives. When is Drug and Alcohol Testing Allowed (Cont'd)? In the published opinion, the Court of Appeals ruled that the State cannot prosecute drivers for refusing to submit to a warrantless urine test. Learn about how elections work in Minnesota, including nomination of candidates, and counting of votes. First, every voter who fills out a voter registration application swears under oath that they are eligible to vote. Understanding DATWA: Minnesota's Drug and Alcohol Testing in the Workplace Act. In cases arising under DATWA, the longer limitations period may not be as troubling for employers as it could be in other situations.