Profiling in the Legal Context

• Definition of Profiling:

  • Profiling can be perceived as either an art or a science depending on perspective.
  • Some profiling methods have strong empirical support, while others lack research.

• Courtroom Use:

  • Profiling evidence often presented in criminal courts, both by prosecutors and defense attorneys.
  • Profilers testify about crime scene characteristics, defendant signatures, and behavioral trait evaluations influencing jury decisions.

• Types of Courts:

  • Criminal Courts: More acceptance of profiling for investigative aid but less so for direct comparisons of a defendant to a profile.
  • Civil Courts: Introduction of profiling in claims, e.g. psychological autopsy in a civil case for life insurance benefits.

• Case Example:

  • Schieber et al. v. City of Philadelphia (2001): Court ruled against admitting a speculative profile report due to its intended investigative use only.

• Types of Profiling Evidence:

  • Behavioral analysis, crime scene analysis, linkage analysis, and psychological autopsies—all evaluated differently by courts.

• Paths to Admission of Profiling Evidence:

  • Profile-Defendant Correspondence (P-DC): Correspondence between a defendant and a profile (controversial).
  • Profile-Crime Correspondence (P-CC): Correspondence between different crimes suggesting a common perpetrator (often more accepted).

• Judicial Standards for Expert Testimony:

  • Frye Standard: Requires scientific acceptance within the respective field for evidence to be admitted.
  • Daubert Standard: Introduced greater focus on the relevance, reliability, and validity of scientific evidence, requiring judges to evaluate the quality of the research presented.

• Courts’ Gatekeeping Role:

  • Federal judges assess expert testimony against Daubert criteria, leading to greater scrutiny post-Daubert.

• Expert Credentials vs. Scientific Validity:

  • Courts often prioritize the expert's experience over scientific reliability of their methods.

• Behavioral Analysis Reception in Courts:

  • Some courts admit expert testimony cautiously, with preference for crime scene analysis over direct offender profiling.

• International Perspectives:

  • Australia and Canada express caution toward profiling evidence due to insufficient scientific validation.
  • UK courts increasingly skeptical, with historical precedents like R v. Stagg indicating profiling’s frailty in convictions.

• Case Analysis Outcomes:

  • Judges may view profiling as speculative and inadmissible when it leads to direct conclusions about an individual’s behavior without sufficient empirical grounding.

• Psychological Autopsies:

  • Evaluated for validity and admissibility in court; courts require rigorous establishment of methodology and consistency in practice, which is often lacking.

• Ultimate Issue Testimony:

  • Expert witnesses prohibited from stating an ultimate legal opinion; their testimony needs to avoid leading jurors to definitive guilt conclusions.

• Common Concerns:

  • Profiling might unduly influence juries, necessitating careful consideration of the probative vs. prejudicial values of the evidence.

Key Terms

• Character Evidence: Evidence intended to show a person's character or reputation as it pertains to a case.

• Falsifiability: The ability of a theory to be disproven by evidence.

• Modus Operandi (MO): A habitual way of operating or doing things, significant in linking crimes.

• Profiling Characteristics: Behavioral traits that can suggest patterns associated with certain types of offenders.

• Ultimate Issue: A legal question that must be answered in a trial, often concerning the guilt or innocence of the defendant.

• Linkage Analysis: A process used to connect multiple crimes committed by the same perpetrator based on similarities in MO, signatures, and other forensic evidence.