As a Board Certified Forensic Toxicologist (D-ABFT) with over 25 years of experience, Dr. Sara J. Schreiber is a world leader in high profile extremely complex forensic toxicology cases in both the criminal and civil areas. Her firm has a team of elite forensic scientists and investigatory experts for civil, criminal, and international tribunal litigation that have worldwide notoriety in the area of independent forensic case review and quality assurance analysis. These expert disciplines include Forensic Toxicology, DNA & Biology, Firearms/Toolmarks/Shooting Reconstruction, Latent Prints, Questioned Documents, and Investigative Analysis and Trial Assistance.

Dr. Sara J. Schreiber specifically specializes in the critical evaluation and interpretation of forensic toxicology evidence involving alcohol, drugs, poisons, opioids, emerging and novel psychoactive substances, drug interactions, impairment and human performance, pharmacology, tolerance, postmortem redistribution, and cause-and-manner-of-death considerations. Her work includes comprehensive review of laboratory methods, analytical data, case files, bench notes, instrumentation, quality assurance practices, method validation, and compliance with accepted forensic and accreditation standards. She provides sophisticated scientific consultation in complex criminal and civil litigation, including postmortem toxicology, drug- and alcohol-related deaths, impaired-driving matters, controlled substances, and challenges involving the reliability, interpretation, and limitations of toxicological findings—translating highly technical scientific evidence into clear, defensible opinions for attorneys, courts, judges, and juries.

Riley, Welch, LaPorte & Associates is the leading global forensic science and investigative analysis firm having conducted high profile multi-billion dollar cases in the United Kingdom, France, Singapore, Hong Kong, Germany, Austria, Sweden, Canada, Netherlands, Hungary, Israel, Switzerland, and Denmark. We are considered a top-tier firm having conducted work for foreign governments, and are recognized globally by the most prominent law firms in the world for providing the highest level of forensic document examination services to both governmental and private entities. They take cases in all 50 states with concentrated cases in New York, Washington D.C., Los Angeles, Chicago, San Francisco, Miami, Las Vegas, Houston, Dallas, and are respected by top Am 100 legal firms throughout the United States and internationally.

Dr. Schrieber's firm has testified as expert witnesses in numerous notable international ICSID cases (ICSID Case No ARB/06/8, ICSID Case No ARB/14/22, PCA Arbitration Case No 2020-21_The Hague). Their testimony has been presented in courts worldwide handling a wide variety of legal matters including criminal law and civil litigation. Their experience includes testifying before government officials, US Federal, Circuit, and District courts, international tribunals, arbitrations, and mediations.