We provide employee screening, drug, alcohol, STD and DNA testing in Houston for both private and legal purposes. Our certified drug and alcohol testing collection labs can provide drug testing by way of urine, hair, saliva, fingernail, sweat / skin, DOT, environmental, and steroids. Our drug test panels also have a broad range to screen against the most basic drugs up to screening for a full array of drugs. We provide Houston drug and alcohol screening services for both individuals as well as employers.