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Steven Avery & Brendan Dassey— Case Archive
evidenceevidencephysicalSteven AverySteven Avery's blood in a purple-topped tube, used as a positive controlDuring Day 16 testimony, LeBeau identified Avery's blood sample as coming from a purple-topped tube containing EDTA. He said the sample tested positive for EDTA when run as a positive control, while the three RAV4 bloodstain swabs tested did not.
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Physical Evidence

Steven Avery's blood in a purple-topped tube, used as a positive control

During Day 16 testimony, LeBeau identified Avery's blood sample as coming from a purple-topped tube containing EDTA. He said the sample tested positive for EDTA when run as a positive control, while the three RAV4 bloodstain swabs tested did not.

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LeBeau used Avery's EDTA-containing blood sample as a positive control when testing three RAV4 bloodstain swabs; he reported EDTA in the tube sample but not on those swabs.

Trial Record (1)