What kind of reference sample is required?
For reference samples, we prefer buccal swabs or blood cards, but we will also accept whole blood. All three sample types produce equally accurate results. We will provide you with buccal swab collection kits. If you are sending whole blood, please use appropriate shipping materials to prevent breakage. You can have a reference sample collected at one of our convenient collection sites nationwide. We can also schedule sample collections at correctional facilities. Please contact us to schedule this collection.
