Welcome to TBI, LLC TBI, LLC is a forensic education & consulting company specializing in Crime Scene Analysis & Reconstruction and Bloodstain Pattern Analysis. We have provided quality training for over 25 years by helping police departments, investigators, attorneys for both the state and defense, Medical Examiners and their field agents in furthering their knowledge in Bloodstain Pattern Analysis and Crime Scene Analysis & Reconstruction. Tom Bevel has qualified as an expert witness in both of the above disciplines in state and federal courts. Tom co-authored Bloodstain Pattern Analysis, With An Introduction to Crime Scene Reconstruction, CRC Press 1997, Second Edition.