Forensics and criminal investigations are important uses for DNA testing. DNA evidence isn’t used quite the way we see it on TV, but it is still a valuable tool for investigators. We think of DNA as a clincher that solves the case, but it is more often used to identify victims or rule out suspects. DNA is circumstantial evidence; it can support a point or theory but not definitively prove it.
DNA testing can be an important step on an immigrant’s path the citizenship. In the United States, it is much easier to become a citizen if you have a blood relative who is already an American citizen. A DNA test can prove that an immigrant does in fact have family that are already citizens.
Having your or your child’s DNA tested to prove paternity can be a sticky family situation, but it is often necessary. DNA testing can be instrumental in divorce or custody proceedings, and peace of mind testing can confirm or allay your suspicions concerning your partner’s fidelity. Paternity testing is also important in cases of contested wills or when someone dies intestate.
Many DNA laboratories do more than test human DNA. Your environment has a significant impact on your health and quality of life. Environmental testing tests the soil or water on your property to see whether or not it is contaminated. If it is, identifying the contaminant can help you treat physical symptoms and remove it from your property or environment.