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Diary of a Criminal Investigator - Chapter 20: Solving a Case Can Be Easy If You Know How
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Chapter 19: Burned Fingerprints
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Chapter 21: Give My Regards to Your Grandfather
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... the past generally involved two major categories: physical methods and chemical methods.
In recent years, due to the widespread application of lasers, optical fingerprint collection has also become more common.
Detectives from Action Team No. 2 typically use physical methods to collect fingerprints, not because they don’t want to use more methods, but because they’re not very familiar with the others.
Among the various physical methods for fingerprint collection, using tr ...
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