Context
Forensic laboratories working with hard samples such as hair [1, 2, 8, 9, 10, 13, 14], bone [3], teeth, skin, etc. experience difficulties with DNA extraction due to the high energy needed to grind these tissues. Moreover, biological evidence is available in small quantities and the current techniques used do not provide high quality results. The Precellys homogenizers provides high speed sample disruption based on beadbeating for the extraction of DNA, proteins, and drugs [1, 2, 5, 7, 9, 10, 12, 13, 14 ] within minutes with high reproducibility and no cross-contamination.