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Hi <<Goes By Name>>,


Not all evidence is as reliable as it seems. Over the last two decades, wrongful conviction cases have revealed a troubling truth: some forensic techniques used in court have little to no scientific foundation.


This type of flawed or exaggerated testimony is often called junk science — and it can have life-altering consequences.


What Counts as Junk Science?


Certain methods once accepted in court have been discredited, including:

  • Hair microscopy comparisons


  • Bite mark analysis


  • Shoeprint and tire tread comparisons


  • “Match language” in tool mark or firearm analysis


  • Shaken baby syndrome diagnoses based solely on triad symptoms


Even when used with good intentions, these techniques can mislead juries and judges — especially when presented as certainty.


How This Happens


Junk science enters the courtroom in several ways:

  • Lack of oversight in expert witness qualifications


  • Outdated forensic training or procedures


  • Overstated conclusions that go beyond what science supports


  • Prosecutors relying on “expert” opinions not grounded in data


  • Defense attorneys failing to challenge “scientific” or “expert” testimony


  • Judges not acting as “gatekeepers” to keep unreliable evidence out of court


In many cases, these problems go undiscovered until long after the conviction — if they’re caught at all.



A Growing Recognition


Nationally, organizations like the Innocence Project and National Academies of Sciences (NAS) have pushed courts to re-evaluate forensic practices. Some courts now limit or exclude certain types of expert testimony — but outdated science still appears in trials today.


In Missouri, forensic science reform has been a growing topic, including state-level work on forensic oversight and recommendations from wrongful conviction reviews.


Why It Matters


A conviction based on unreliable evidence can change the course of someone’s life — even if no crime was committed. When the defense challenges flawed science early, it can protect the outcome. When those challenges happen later, they can be the basis for post-conviction relief. We file motions that matter — not just as a formality

Facing A Criminal Charge?


Schedule your free consultation today — if you or someone you know is facing a criminal charge and haven’t hired a lawyer yet, this is your chance to get answers and understand your next steps.

Your defense starts with a conversation.


Sincerely,

W. Scott Rose

Criminal Defense Attorney

Rose Legal Services LLC

314.462.0200

www.roselegalservices.com

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