Trusted Forensic Toxicology Expertise

Valley Scientific LLC provides independent forensic toxicology consulting for attorneys and government agencies. Services include case review, toxicology interpretation, expert witness testimony, laboratory quality assurance, and standard operating procedure evaluations to support scientifically sound and defensible conclusions.

  • Expert Witness
  • Forensic Toxicology
  • Case Review
Case Review

Case Review &
Toxicology Interpretation

Independent review of toxicology reports, laboratory documentation, analytical methods, and scientific findings to identify strengths, limitations, and issues that may impact a case.

Expert Witness

Expert Witness
Services

Objective expert testimony and consultation for criminal and civil proceedings, translating complex toxicology concepts into clear, scientifically supported opinions.

Laboratory Quality Assurance

Laboratory Quality
Assurance

Review of laboratory quality systems, standard operating procedures, validation practices, and quality assurance processes to promote accurate and reliable forensic testing.

Experience You Can Trust

Valley Scientific LLC provides independent forensic toxicology consulting backed by over 15 years of laboratory experience, scientific integrity, and courtroom expertise.

  • 15+ Years Experience

    Extensive experience in forensic toxicology, laboratory operations, alcohol testing, drug analysis, and scientific interpretation.

  • Qualified Expert Witness

    Admitted by the court as an expert witness in the Superior Courts of Fresno and Tulare Counties, as well as the United States District Court.

  • Laboratory Quality Assurance

    Evaluation of laboratory quality systems, standard operating procedures, method validation, and compliance practices.

  • Independent Opinions

    Objective scientific opinions based on accepted forensic toxicology principles, analytical data, and professional standards.

  • Attorney Consultation

    Clear communication of complex toxicology findings through consultations, written reports, depositions, and courtroom testimony.

Eduardo Ruvalcaba

Contact

Eduardo Ruvalcaba, B.S.

Forensic Toxicologist

Phone: (559) 510-6161

Email: Edward@valleysci.com