There are two methods of DNA paternity testing - the doctor initiated paternity test and the home paternity test. The more accurate of the two is the doctor initiated paternity test which is completed in a DNA testing facility or the doctor's office. The home paternity test is less accurate, but can still be used to establish inclusion and exclusion. The results of the home paternity test will not be admissible in a court of law.
The doctor initiated DNA paternity testing can be performed at a DNA testing facility or the doctor's office. These facilities are prepared to collect the DNA sample in various ways and are trained in the testing procedures of the DNA once collected. If a DNA sample is being collected at a doctor's office and sent to a lab, there could be more than one type of DNA collection used to ensure proper amounts of DNA samples are sent to the lab. The most common collection points are the cheek and the blood.
The home paternity testing kits are relatively new on the market. These kits come with detailed instructions, cheek swabs, collection bags and a return address label to send the sample to the testing lab. The users simply need to swab the inner cheek according to the directions, seal the swab in the collection bag and send off the samples. Mother, baby and suspected father will all need to collect DNA samples for the lab to process the paternity test. Test results will not be legally binding as the collection was not supervised.