Expert Witness
Court-qualified digital forensics expert.
Ryan Purita is a court-qualified expert witness in computer forensics and security with testimony in BC Supreme Court, BC Provincial Court and Newfoundland Provincial Court. He has been qualified to provide expert opinion on computer forensics, digital security, mobile forensics and internet infrastructure.
Qualifications
Accepted as expert in three courts
Ryan Purita has been qualified as an expert witness in computer forensics and security by judges in BC Supreme Court, BC Provincial Court and Newfoundland Provincial Court. He has testified for both prosecution and defence in criminal matters and for parties in civil litigation.
His expert opinion has been accepted on topics including computer forensics, digital security, mobile forensics, internet infrastructure, operating systems and email analysis. He holds CISSP-ISSAP and ISSMP certifications and has over 20 years of forensic examination experience.
All forensic examinations follow documented and reproducible methodology designed to withstand challenge under cross-examination. Reports are prepared to court-admissible standards with full chain of custody documentation.
- Jurisdictions
- BC Supreme Court, BC Provincial Court, Newfoundland Provincial Court
- Qualified Areas
- Computer Forensics, Digital Security, Mobile Forensics, Internet Infrastructure, Operating Systems, Email Analysis
- Certifications
- CISSP (since 2002), ISSAP, ISSMP, BCIT Forensic Investigations (with Distinction), EnCase, AccessData FTK
Case History
Expert witness testimony record
| Case | Year | Court | Side | Qualified In |
|---|---|---|---|---|
| Malak v. Hanna | 2016 | BC Supreme Court | Prosecution | Computer Forensics and Security |
| R v. Gunson | 2015 | BC Provincial Court, Surrey | Defence | Computer Forensics, Security and Mobile |
| R v. Sedore | 2014 | BC Supreme Court, Victoria | Defence | Computer Forensics and Security |
| R v. Kelly | 2013 | Newfoundland Provincial Court, St. John's | Defence | Computer Forensics and Security |
| R v. Mills | 2013 | Newfoundland Provincial Court, St. John's | Defence | Computer Forensics and Internet Infrastructure |
| R v. J.M. | 2009 | BC Provincial Court, Richmond | Defence | |
| Canadian Metals v. Wiese | 2006 | BC Supreme Court, Vancouver | Defence | Operating Systems and Emails |
Process
How expert witness engagement works
- 1. Consultation
- Initial review of the matter to determine if digital forensic expertise is relevant and the scope of examination required.
- 2. Examination
- Forensic acquisition and analysis following documented methodology. Full chain of custody maintained throughout.
- 3. Reporting
- Detailed expert report prepared to court-admissible standards. Findings supported by verifiable digital artefacts.
- 4. Testimony
- Expert witness testimony in court including direct examination and cross-examination. Available for voir dire qualification hearings.
Standards
Forensic standards and authorities
- (ISC)²
- CISSP Certification - Certified Information Systems Security Professional
- BC Courts
- Courts of British Columbia - Provincial and Supreme Court of BC
- RCMP
- RCMP Technical Investigation Services - Canadian law enforcement digital forensics standards
Get Started
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Engage expert witness services
Whether you are counsel for prosecution or defence, Ryan Purita provides impartial expert forensic analysis and testimony. Contact us to discuss your matter confidentially.