Purpose: Provide forensic services to attorneys and give an honest representation of the evidence not provided by law enforcement or the prosecution team during
the trial.
Expert: Your best expert is not an expert
working for the prosecution.
Dr. Johnston is committed to work directly with your legal defense team
to determine circumstances that support your innocence.
Areas of expertise: Blood alcohol/DUI, breath
testing (Intoxilyzer 8000), toxicology of drugs and drug testing,
urine drug tests, detection limits for THC in blood or urine,
firearms, bullet/cartridge comparisons, gun shot residue, shooter-victim distance determinations,,
blood spatter, crime scene reconstruction, drug laboratories & any
special circumstances in your case.
THIRTY-NINE YEARS OF EXPERIENCE … FBI, ATF, EPA, California Dept Justice Trained, & Training Officer
for 438th MP Detachment