There has been some clarification in recent years, however, thanks to advances in DNA testing.
One example of DNA testing is checking that a burger comes from Aberdeen Angus beef.
Many were cleared by DNA testing, including a significantly older married man Mirack was discreetly dating.
If no X-rays can be found, experts said the next step would be DNA testing.
It wasn't until 2010 that DNA testing finally confirmed the identity of Kelly's remains.
The bones were then exhumed in 2009 and identified using DNA testing in 2011.
Blake married Bakley only after DNA testing showed he was the father of the baby.
Subsequent DNA testing confirmed that the skeleton was that of the missing king.
Belmoktar's death has not yet been confirmed by French authorities, who identified Zeid's remains by DNA testing.
As Conrad notes, the Innocence Project has already cleared hundreds of individuals based on DNA testing alone.
Aldi UK said it commissioned its own "independent DNA testing" of products produced by the Dalepak factory.
It also announced it was to introduce a "comprehensive system of DNA testing across our meat products".
We have also established comprehensive DNA testing procedures - we will become an industry leader in this area.
Gerdes went on to say that the outside labs that did the actual DNA testing were pretty good.
The results were confirmed by DNA testing of 1, 000 people in Brazil.
In the days before DNA testing, this meant a lot of innocent people were imprisoned, and many put to death.
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Envoys have already conducted preliminary DNA testing and announced that the probabilities of this boy being Emmanuel are very high.
Enter DoubleHelix Tracking Technologies, a Singapore-based firm that uses DNA testing to pinpoint where a piece of wood is from.
He was the 18th capital inmate freed after subsequent DNA testing proved their innocence, according to the New York-based Innocence Project.
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Up to now DNA testing has not been "terribly widespread", says Rossides.
Fingerprints, photographs and DNA testing are all familiar biometric data types today.
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Their dream came true when scientists announced Monday that DNA testing had established that the skeleton was indeed that of Richard III.
The aquatic mammal was taken to Edinburgh Zoo for a proper health check and DNA testing, before being released back into the reserve.
But, I think, if you look back then and look now at the totality of forensic DNA testing, it's absolutely for the good.
Queen's University sent 10 cod products that were purchased at the same time to an institute it works closely with in Scotland for DNA testing.
Even though it would be irrelevant to the estate case, Rebecca Stark Smith now hopes to get a court order exhuming bodies for DNA testing.
Since DNA testing has become available, Ms. Rose said, 22 people have been eliminated as suspects after providing DNA samples for comparison with crime-scene evidence.
More thorough testing was carried out - including the DNA testing of raw material at Comigel's factory - and the results were confirmed on Wednesday.
Known for their babyish faces, large ears and long tails, pygmy elephants were found to be a distinct subspecies only in 2003, after DNA testing.
At the time, the Home Office responded that DNA testing would not be used alone but would be combined with language analysis and investigative interviewing techniques.
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