Security Expert Witness

Billy Cales

Billy brings decades of experience in forensic science, courtroom testimony, and law enforcement training. His background includes firearms analysis, DNA evaluation, fingerprint comparison, and expert witness services across numerous jurisdictions. He has testified in both state and federal courts, supporting attorneys in complex criminal and civil litigation. Billy also provides consulting in shooting reconstructions, crime scene analysis, and evidence interpretation.

Billy Cales

Practice Areas

  • Forensic Science
  • Crime Scene Analysis
  • Ballistics & Firearms

Certifications & Training

  • Specialized Forensic Training, National Level
  • Southwest Missouri Police Academy (POST Certified)
  • Missouri Southern State College (B.S., Criminal Justice)

Location

Chicago, IL

Contact

Billy Cales is a nationally recognized forensic consultant with over three decades of investigative field experience. His expertise spans a wide spectrum of forensic disciplines, including crime scene reconstruction, firearms analysis, and shooting incident dynamics. Throughout his career, he has assisted defense attorneys and prosecutors by offering comprehensive analysis and testimony in both state and federal courts across the country.

He has served as a lead investigator and certified instructor in multiple areas such as death scene examination, bloodstain pattern interpretation, and ballistic trajectory assessment. His practical insights are backed by law enforcement service, where he instructed recruits and seasoned officers in the principles of evidence collection and forensic methodologies. He remains an active educator for professional legal associations and national forensic training programs.

Billy's approach is rooted in clarity, precision, and scientific accuracy. He has been instrumental in shaping case outcomes through expert evaluations, depositions, and live testimony. As a Missouri-based forensic specialist, his work is sought by legal professionals aiming to ensure evidentiary integrity. His contributions continue to influence litigation strategy in complex criminal and civil matters nationwide.