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128 A.3d 883
Vt.
2015
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Background

  • Defendant (Leo Pratt II) convicted of aggravated sexual assault of a 12-year-old relative based on victim T.B.’s letter, other statements, and forensic extraction from defendant’s cell phone.
  • T.B. wrote a letter the night of the assault expressing fear; she later showed it to a friend and the school, which led to police/DCF involvement.
  • At pretrial, State moved to admit T.B.’s out-of-court letter under V.R.E. 804a; defendant moved to exclude expert testimony about data extracted from defendant’s phone using Cellebrite.
  • Trial court admitted the letter as sufficiently trustworthy under Rule 804a and admitted the forensic expert’s testimony under Rule 702 after a Daubert/Kumho-style reliability inquiry.
  • Jury found defendant guilty; on appeal the defendant challenged (1) admission of the letter, (2) admission of the Cellebrite-based expert testimony, and (3) alleged coercion of the jury by court comment about resuming deliberations Monday. Court affirmed.

Issues

Issue Plaintiff's Argument Defendant's Argument Held
Admissibility of victim’s letter under V.R.E. 804a Letter was a spontaneous disclosure to a trusted adult/peer; time, content, and circumstances show substantial indicia of trustworthiness Letter alone is unreliable; no one witnessed writing so contents could be fabricated Admitted: court’s findings (disclosure to trusted adult, age-appropriate writing, spontaneity, consistent statements, no coercion) supported admission under Rule 804a
Admissibility of forensic testimony on Cellebrite extraction (V.R.E. 702) Expert had extensive training and experience, verified extractions by manual comparison and other software, and Cellebrite is widely used and testable; Daubert factors applied flexibly Expert lacked knowledge of underlying programming, no error-rate evidence, and relied on popularity and training rather than source code understanding Admitted: trial court did not abuse discretion; Daubert/Kumho factors applied flexibly to technical (non-novel) tool and foundational experience/testing sufficed; deficiencies go to weight not admissibility
Jury coercion by court remark about resuming Monday N/A (State answered by upholding court’s neutral scheduling statement) Court’s statement created time pressure and coerced verdict by implying deadline No coercion: court plainly said verdict by 5:30 was "fine" if not reached, instructed jurors to take needed time, and merely informed them about scheduling if deliberations continued Monday

Key Cases Cited

  • State v. Reid, 192 Vt. 356 (Vt. 2012) (factors for evaluating trustworthiness of child out-of-court statements under Rule 804a)
  • Daubert v. Merrell Dow Pharm., 509 U.S. 579 (U.S. 1993) (trial-court gatekeeping standard for expert admissibility)
  • Kumho Tire Co. v. Carmichael, 526 U.S. 137 (U.S. 1999) (Daubert gatekeeping applies to technical and other specialized knowledge)
  • United States v. Morgan, 385 F.3d 196 (2d Cir. 2004) (admission of private inculpatory letter under residual hearsay exception as sufficiently trustworthy)
  • United States v. Chiaradio, 684 F.3d 265 (1st Cir. 2012) (FBI agent’s testimony about EP2P software admissible based on experience and verification despite lack of source-code knowledge)
  • State v. Brooks, 162 Vt. 26 (Vt. 1993) (adoption of Daubert factors in Vermont Rule 702 analysis)
  • Krause v. State, 243 S.W.3d 95 (Tex. App. 2007) (forensic examiner’s use of indexing/Hashing tools admissible despite lack of programming knowledge)
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Case Details

Case Name: State v. Leo Paul Pratt II
Court Name: Supreme Court of Vermont
Date Published: Aug 14, 2015
Citations: 128 A.3d 883; 2015 VT 89; 2015 Vt. LEXIS 84; 200 Vt. 64; 2014-121
Docket Number: 2014-121
Court Abbreviation: Vt.
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    State v. Leo Paul Pratt II, 128 A.3d 883