Drink Guard Date Rape Drug Detector. This is a test kit to test your drinks for hidden drugs. Each test kit comes with 10 Test cards, each card has 2 test on each card. The test is easy to perform just put a drop of your drink on the test area and wait until it dries. You will then know if your drink is safe to drink or may have a hidden drug inside. Use these test strips to detect the possible presence of illicit Date Rape drugs like GHB and Ketamine in alcoholic and non-alcoholic beverages. Drug-facilitated sexual assault, commonly known as "Date Rape", occurs when illicit drugs are slipped into an unsuspecting victim's drink. Each book measures 3 1/2" x 2 1/2"