Post Conviction DNA Case Management Symposium - PowerPoint PPT Presentation

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Post Conviction DNA Case Management Symposium

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Title: PowerPoint Presentation Author: David Cadle Last modified by: ngahn Created Date: 5/23/2000 2:35:40 PM Document presentation format: Letter Paper (8.5x11 in) – PowerPoint PPT presentation

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Title: Post Conviction DNA Case Management Symposium


1
Post Conviction DNA Case Management Symposium
  • Cold Case Investigations Lessons Learned
    Relevant to DNA and Post Conviction Relief
  • Norman Gahn, Assistant District Attorney,
    Milwaukee County

2
Time Limitations and DNA
  • John Doe Warrants - arrest warrant based upon
    genetic profile issued prior to expirations of
    statute of limitations to preserve jurisdiction
  • Legislative changes to statute of limitations for
    certain crimes when DNA profile of perpetrator is
    present

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Wisconsin Court of Appeals stated
  • We conclude that for purposes of identifying a
    particular person as the defendant, a DNA
    profile is arguably the most discrete, exclusive
    means of personal identification possible.
  • State v. Dabney, 264 Wis.2nd 843, 663 N.W. 2nd
    366 (WI App 2003)
  • See Also, State v. Davis, 698 N.W.2nd 823, 2005
    WI App 98

9
If cold hit beyond statute of limitations or case
is not charged
  • Complete investigation/crime lab confirmation
  • Submit completed investigation to registrar at
    prison and parole/probation officer
  • Basis for sex predator status
  • Potential other acts evidence
  • Victim notification/Impact Stmt

10
State v. John Doe 5
  • Five Separate Sexual Assaults occurring on
    3/27/94, 8/11/94, 11/29/94, 12/20/94, and
    1/14/95.
  • All Victims Forced Off Street at Gunpoint to
    Secluded Location
  • Very Similar Description of Assailant

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Cold Case Prosecutions/PCM Parallels
  • Time Limitations
  • Finding Investigator to Commit to Case
  • Locating Biological Evidence
  • Locating/Identifying Discovery
  • Identifying 3rd Parties
  • Victim Impact

22
Locate All Discovery
  • Police Reports
  • Crime Lab Reports of Analysis
  • SANE Reports
  • Crime Scene Photos
  • Physical Evidence
  • Chain of Custody Documents

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Any 3rd Party Defenses?
  • Misidentifications with photo arrays
  • Misidentifications at line-ups
  • Standards of suspects submitted by police to
    crime lab
  • Crime lab ABO/enzyme inclusions and/or exclusions
  • Anonymous tips/police stops
  • Exclude and bring motion in limine

30
Sexual Assault Victim Impact with Cold Hits
  • Has victim put past behind her?
  • Is the trauma being reawakened?
  • Will she show up for trial?
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