Mark Pfoff

Forensic Cellular Technology Expert and Computer Forensic Examiner

Mark Pfoff is an experienced computer engineer; turned detective and computer forensic examiner.  He has over 35 years experience in computers.  After working as an engineer for 22 years; working for such companies as Digital Equipment Corporation and MCI, he went into law enforcement full time.   Mark worked as a Detective with the El Paso County Sheriff’s Office in Colorado Springs, Colorado for over 10 years specializing in computer related crimes. He retired from law enforcement in October of 2014 after a 17 year career.
Mark has a wide range of knowledge concerning computers and computer forensics.  He has personally examined thousands of items of digital evidence to include computer hard drives, cellular telephones (300+), tablets, flash drives, memory sticks, DVDs, and CDs.   His knowledge of technology has been utilized in many major criminal investigations to include financial crimes, kidnappings, robberies, sex assaults and homicides. 
Mark conducted computer forensics and cell phone forensics for many local law enforcement agencies, and has done projects with the US Military (OSI, CID, and JAG), Federal Law Enforcement, US Attorney’s Office, and multiple commercial companies.  He has experience with both criminal and civil cases. 
Mark Pfoff is an expert in cellular technology and call detail records (CDR) analysis. He has worked on many cases where he analyzed call detail records (CDRs).  He also has experience with PCMD (per call measurement data) and NELOS (Network Event Location System) records from AT&T. Many criminal investigations include cell phone records.  It is important they are analyzed by a qualified expert.
Experienced providing expert testimony; Mark Pfoff has been qualified numerous times in court as an expert in computer forensics, cell phone forensics, forensic cell phone technology, forensic computer technology, forensic and computer surveillance system analysis, child exploitation, law enforcement procedures and investigations.  He has also been recognized as an expert in evidence collection, chain of custody, best evidence, proper evidence collection of digital evidence, and proper witness interviewing techniques. He has testified numerous times in district court on a wide range of criminal cases to include child exploitation (pornography), sex assaults, robberies, kidnapping, and homicides. Mark has the ability to explain complicated forensic items in a way a jury can understand. 
As a Detective for the El Paso County Sheriff’s Office, Mark investigated many types of cases to include child exploitation, child abuse, identity theft, robberies, burglaries, kidnappings, sex assaults, and sex assault on a child.  He assisted on numerous homicide investigations to include the murder of Colorado Department of Corrections’ chief Tom Clements and the Black Forest fire. 
Mark Pfoff has given numerous lectures and training.  He currently teaches Colorado Revised Statutes, Preliminary Investigations, and Computer Crimes at the Pikes Peak Community College Regional Law Enforcement Academy. Mark developed a training class on cellular technology for attorneys and investigators.  He taught a section on technology for a homicide seminar sponsored by the University of Colorado at Colorado Springs (UCCS).  Mark has spoken at many school districts around Colorado about Social Media, Sexting and Cyberbullying.  He has spoken on a wide range of subjects to groups as large as 300 individuals.
Mark Pfoff is on the Federal PD and Colorado Alternate Defense Counsel’s list of approved Experts