New: locardAll contenthive-129948hive-196917krzzanhive-183959steemhive-180932photographyhive-185836uncommonlabhive-144064bitcoinhive-166405hive-150122hive-145157krsuccesshive-109690hive-139150hive-188619hive-101145hive-124908hive-183397lifehive-184714cryptoTrendingNewHotLikersjohnnypiracha (25)in dna • 7 years agoDNA ExtractionAbstract “Every contact leaves a tract” the locards exchange principle. In most physical crime scenes there is some source of biological evidence found. Almost any intact evidence containing DNA…