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Steven Avery & Brendan Dassey— Case Archive
evidenceevidencedocumentSteven AveryExhibit 434The procedure describes screening and confirmation of EDTA in suspected bloodstains, and the court admitted Exhibit 434 on Day 17. LeBeau testified that it was not validated to measure a specific EDTA amount and described a reversal of its written ion-analysis sequence as a minor deviation.
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Exhibit 434

The procedure describes screening and confirmation of EDTA in suspected bloodstains, and the court admitted Exhibit 434 on Day 17. LeBeau testified that it was not validated to measure a specific EDTA amount and described a reversal of its written ion-analysis sequence as a minor deviation.

5 proceedings5 mentions1 trial
Also known as (3)
  • Case-specific EDTA testing procedure
  • FBI procedure for EDTA analysis in dried bloodstains
  • FBI protocol for testing EDTA in bloodstains, issued February 15, 2007

About

Exhibit 434 was the case-specific procedure examined in testimony disputing what the absence of detectable EDTA in three tested RAV4 stains meant when EDTA was detected in Avery’s stored blood tube.

Trial Record (5)