Buccal swabbing is the primary method of DNA sample collection. It is a painless, quick, and simple technique. In fact, it is so painless and noninvasive that it can be safely performed on people of all ages—even newborns.
A buccal swab is similar to a cotton wool bud, but it is made of a special material called Dacron® that provides a consistent surface for DNA sample collection and DNA extraction. In the sample collection process, four buccal swabs are rubbed against the inside of a person's cheeks; two swabs are used on each cheek. The rubbing action gathers loose cheek cells from the mouth, and these cells contain the DNA we use for our genetic tests.
DDC UK strictly follows the chain of custody documentation process to help ensure that our test results will be legally defensible in courts of law and other government departments if needed. An important component of the chain of custody process is how the buccal swab samples are collected. They must be collected by a neutral third party, such as a doctor or nurse. In addition, all tested parties must be positively identified at their sample collection appointments.
When you go to a sample collection appointment, you will be asked to:
Present government-issued photo identification for yourself.
Present identification (such as a birth certificate) for any tested minors for whom you have parental responsibility.
Be photographed and thumbprinted.
Complete a Client Identification and Consent Form for yourself and any tested minors under your guardianship.
DDC UK strives to make the DNA sample collection process as convenient for our clients as possible. We will coordinate with GPs and nurses in your area to arrange your DNA sample collection. Or, if it is more convenient, you can come to our London office to be collected by a representative of DDC UK.
If you have any questions about our DNA sample collection or chain of custody processes, please call us at 0800 860 0856.