Fernando if it was set up as a legal test you can request the chain of custody as long as you was a tested party. The chain of custody will provide the pictures taken at the collection site, the signatures of the tested parties. Otherwise with a non legal test was done where you collect samples yourself , unless you watched the collection and sealed and mailed yes people can collect other people's samples and send them in. Unfortunately with the in home test the lab is basing the results off what the person is stating on who is collected. Legal test will always benefit you the most.
No. Sorry. We only had to take the test once n it was accurate.
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