Recent studies have shown that nearly 17% of all adults regularly use illegal drugs. The responsibility of maintaining a safe working environment rests on the employer’s shoulders. If there are employees or hired contractors that are under the influence while at your work site, the work environment can no longer be considered safe. Not only do they put themselves in danger, but they also put their coworkers and other staff members at risk. Studies suggest that employees who are under the influence of drugs are 33% less productive and ten times more likely to call in sick that those who are not drug users.