Pierson v. People
279 P.3d 1217
Colo.2012Background
- Pierson was convicted of indecent exposure and multiple sexual assault-on-a-child offenses based on allegations by his eight-year-old niece.
- The victim described repeated sexual contact by Pierson during his six-month stay living in a camper adjacent to the family home.
- The defense sought to admit undisputed evidence that the victim had prior sexual contact with her fifteen-year-old cousin during the same timeframe to show an alternate source for precocious knowledge.
- The trial court denied the motion, ruling the cousin evidence did not fit the rape shield exceptions and lacked sufficient incremental probative value.
- On appeal, the court affirmed the trial court’s exclusion of the cousin evidence; the Colorado Supreme Court granted review only on the exclusion of the cousin evidence as an alternate source for precocious knowledge.
- The majority held the evidence fell outside the constitutionally protected rape shield exceptions and CRE 403 balancing, upholding the exclusion.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether cousin's prior sexual abuse falls within rape shield exceptions | Pierson argues cousin evidence shows alternate source under § 407(1)(b). | Pierson contends evidence is relevant to material issue and not substantially prejudicial. | Not admissible under § 407(1)(b); no sufficient incremental probative value under § 407(2)(e). |
| Whether evidence could be admitted under § 407(2)(e) as relevant to a material issue | Evidence could illuminate the victim’s precocious knowledge and potential alternate source. | Evidence was not relevant to material issues and lacked admissible basis. | Trial court did not abuse discretion; evidence not sufficiently probative under § 407(2)(e). |
| Constitutional framing of admissibility under rape shield and defense rights | Excluding cousin evidence violated Pierson's rights to present a complete defense and to confront witnesses. | Statutory framework prioritizes protection against unfair prejudice; procedures were followed. | Majority resolution: exclusion upheld; no constitutional violation found; evidence properly excluded. |
Key Cases Cited
- People v. MacLeod, 176 P.3d 75 (Colo. 2008) (rape shield framework and in-camera relevance balancing)
- People v. Salazar, 272 P.3d 1067 (Colo. 2012) (statutory procedure and policy goals of rape shield)
- People v. Saiz, 32 P.3d 441 (Colo. 2001) (probative value influenced by availability of other evidence)
- People v. Bowers, 801 P.2d 511 (Colo. 1990) (precocious sexual knowledge as indicator of abuse)
- MacLeod cited with context, 176 P.3d 75 (Colo. 2008) (principles governing rape shield and material issue relevance)