Digital Forensics experts
Verden Forensics specialise in multimedia forensics for the criminal, civil, and private sectors from our laboratory in the heart of Edgbaston, Birmingham.
Our focus is on delivering work of the highest scientific integrity and only rendering opinions which can be supported by analysis and best practice guidelines. As a company, we have a passion for the scientific foundations which allow forensics to be possible, demonstrated through the various research we have published, participated in, and presented at forensic conferences around the world. We also have strong ties with several academic institutions and work closely with a Dutch software company specialising in forensic imagery solutions.
Our experience includes forensic examinations in various types of cases ranging from murder and large-scale international drug trafficking through to internal workplace investigations and private matters, both in the UK and abroad.
We are always happy to discuss any questions you may have, or offer guidance on what we require to achieve results of the highest reliability and integrity. We are highly accessible and responsive, can meet Legal Aid Agency (LAA) rates, and can be reached directly via phone or email.
Personnel
MANAGING DIRECTOR: James Zjalić
Education includes a Masters Degree in Media Forensics from the National Centre of Media Forensics at the University of Colorado, Denver, USA, and a Bachelors Degree (1st Class Hons) in Audio Engineering.
Casework experience includes criminal, civil and private cases, including work for the United Nations and various police forces in relation to the most serious offences such as murder, rape and pedophilia.
Research highlights include peer-reviewed publications and international presentations on subjects including audio authentication, audio enhancement, and video authentication. Research has also led to the development of in-house multimedia authentication software, featuring a myriad of analyses that are unavailable in off-the-shelf software.
Author of the book ‘Digital Audio Forensics Fundamentals’, available at Amazon.
Member of a research group on a US Pentagon funded multimedia analysis project for DARPA and the US Air Force (Codename: MEDIFOR).
Professional Field Advisor to Foclar, developers of Forensic Media Enhancement and Analysis Software.
UK Security Clearance and Non-Police Personnel Vetting Level 3.
Conferences, training courses and workshops are attended on a regular basis to stay at the forefront of developments within the digital forensic field, ensuring examinations utilising the most current research, tools, technology and techniques.
PUBLICATIONS
BOOKS
Zjalić, J. (2020) Digital Audio Forensics: From Capture to Courtroom, Taylor & Francis, London, UK.
Research
Grigoras, C., Koenig, B.E., Lacey, D.S, Smith, J.M., Whitecotton, C., Zjalić, J. (2021) A Forensic Analysis of Digital Speech Standard (DSS) Files, AAFS Annual Conference 2021
Lomboy, G., Whitecotton, C., Zjalić, J. (2021) A Study of Video Conferencing Software from an Authentication Perspective, AAFS Annual Conference 2021
Lomboy, G., Zjalić, J. (2020) The Use of On-Screen Time Display for Authentication of Videos Captured using Body-Worn Cameras, AAFS Conference 2020, Anaheim, CA, USA
Zjalić, J. (2021) An Acceptable Resolution for the Analysis of Knives Captured within CCTV Imagery, AAFS Conference 2020, Anaheim, CA, USA
Zjalić, J. (2019) Detection of In-App Apple Voice Memos Edits through Extrapolation Artifacts, AES Audio Forensics 2019, Porto, Portugal Link;
Zjalić, J. (2019) iPhone Video Metadata: What can it Teach us About a Recordings History?, AAFS Annual Conference 2019, Baltimore, ML, USA
Zjalić, J. (2018) A Proposed Enhancement Framework for Forensic Audio, AAFS Conference 2018, Seattle, WA, USA
Grigoras, C., D.S, Smith, Zjalić, J. (2017) A Low Cost, Cloud-Based, Portable ENF System, AES Audio Forensics 2017, Arlington, VA, USA Link
Zjalić, J. (2017) Determining Dimension Specific Information for Monaural Sound Recordings, AES Audio Forensics 2017, Arlington, VA, USA
Articles
Zjalić, J. (2019) Imagery Forensics in 2019, Digital Forensics Magazine
Zjalić, J. (2018) Attack of the Clones: A.I. in Media Forensics, Digital Forensics Magazine
Zjalić, J. (2018) Why Forensic Audio Isn’t Audio Engineering, Sound on Sound Magazine Link
Zjalić, J. (2018) Charlatans in Digital Forensics, Forensic Focus Link
Zjalić, J. (2017) CSI Effect: Expectations Vs Limitations, Forensic Focus Link
Zjalić, J. (2017) Iron Bars, Cement and Super Glue, Forensic Focus Link
Zjalić, J. (2017) When No Conclusion can be a Conclusion: Facial Comparison, Forensic Focus Link
Zjalić, J. (2017) Audio Forensics in 2017, Digital Forensics Magazine
Zjalić, J. (2017) The Future of ENF Systems, Forensic Focus Link