When a blood sample has been taken by crime scene officers and they say they have had a hit is that conclusive evidence that the sample they have can be definately matched to a sample on record? If so why would the police have to take another sample, I thought one sample would have been enough.
2006-11-17 07:59:00 · 2 answers · asked by Linda R 2 in Science & Mathematics ➔ Chemistry
Don't they often get a partial sample and end up with a probability of a match (millions to 1) rather than an exact match? You'd have to sequence the entire DNA of the individual and sample for a 100% match.
Hence more samples may improve the odds.
2006-11-17 21:08:40 · answer #1 · answered by Older&Wiser 5 · 1⤊ 0⤋
they may need another sample to repeat the matching. There would be no other reason why they would need another sample.
2006-11-17 09:09:22 · answer #2 · answered by franklino 4 · 1⤊ 0⤋