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sounds like someone couldn't read a gel electrophoresis ? How long did they run the gel for ? Accuracy can be increased in a read with a longer gel ... Were they using some 4" gel ? There are tons of variables. And as stated in the article some of them aren't even running the right tests.

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It's worse than that. As the article points out, we shed cells everywhere, and the possibility exists that the test was conducted fairly and accurately, but it doesn't prove what the prosecutor claimed -- that the DNA proved guilt. All the DNA proved was that the defendant's DNA was present where the measurement took place, but this doesn't necessarily mean the defendant was ever there, or was present at time time of the crime.

It also alludes to the separation of concerns in forensic examinations creating a new set of problems. For example, the DNA testers had a sample to test, and little to no knowledge of the greater context.

On the other hand without separation of concerns, you get the risk of the lab "finding" what the investigators wanted, like the incidents in the FBI labs in the 1990s.

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