Do you have an employee drug testing policy specified in your employee handbook? If not, it may be something that you want to consider implementing. Many companies require pre-employment drug screens and random drug tests for current employees. If you do require drug tests, select a reputable third party provider to handle drug testing for you. You can do them on-site or send your employees to the drug testing company’s office for testing. Employees will be instructed to provide information about any prescription or nonprescription medications that they are taking, even fat burners and allergy pills, so that the results can be interpreted properly.