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How can a fingerprint comparison go wrong?

A fingerprint left on a surface is a trace that must be interpreted. Missing detail and distortion can make comparison with a reference print difficult, and examiners can disagree about whether enough information is present. A known-answer study makes the problem measurable by comparing decisions with prints whose true relationship is already established.

5–7 min

Questions you could explore

  • Which comparisons belong in the denominator of a false-positive rate?
  • How should inconclusive decisions be represented when describing accuracy?

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Law and rights

Who decides what in an Irish criminal jury trial?

The judge and jury share a courtroom while answering different questions. In the Irish jury-trial example, the judge directs on law, the jury reaches a verdict from the evidence, and sentencing after a guilty verdict belongs to the judge.

3–5 min
How can a fingerprint comparison go wrong? | Speech Topic | speaking.app