Although employees may object to mandatory drug testing due to concerns for an invasion of their privacy, employers are responsible for maintaining the public's safety. Education about substance abuse, testing, and treatment should be a part of every employer's anti-drug program. Costs for testing can range from $20 to $200; however, an employer, such as a hospital, that fails to test for substance abuse could face increased liability for an injury to a patient if a drug impaired employee caused it.