How does one establish a chain of custody to validate a test for the sample taken and who requests them?

Answer:
Validated tests are typically done at the request of a court order or through a doctor's prescription. The samples are collected in the lab after proper identification has been shown and the parties must sign an informed consent form. The results are notarized and then transported via courier to a designated party (such as the court) to ensure that the chain of custody remains intact.
First answer by KellyBrian. Last edit by KellyBrian. Contributor trust: 29 Question popularity: 1 [recommend question].