Forensic Analytics Webinar Series - Winter 25/26
Unlock the Power of Communications Data in Your Investigations.
Join our exclusive US-focused webinar series designed for investigators, legal professionals, and anyone interested in the science behind mobile device location analysis. These sessions break down complex concepts into practical insights you can apply in real-world cases.
Our next webinar is held on 25 February 2026, registration forms are below.
What to Expect:
Expert-Led Sessions: Learn from industry specialists with years of experience in cell site analysis.
Core Topics: Fundamentals of mobile network data, legal considerations, and best practices for accurate interpretation.
Real Case Studies: See how cell site analysis has been used in major investigations to reconstruct timelines and movement patterns.
Interactive Q&A: Get your questions answered live by our experts.
Why Attend?
Stay up-to-date with the latest developments in communications data and cell site analysis
Learn from experienced practitioners and subject matter experts
Gain practical insights to apply directly in your investigations
Build your confidence in requesting, interpreting, and presenting communications evidence
Timing Advance and DAS (Distributed Antenna System) Cells
In this webinar, Martin Griffiths and Joe Hoy of Forensic Analytics, explore the complexities of dealing with Timing Advance (TA) evidence gained via DAS – Distributed Antenna System – cells.
In a previous webinar, held on 28 January 2026, we looked at how TA works, what the data is really telling us and how it can most accurately be interpreted.
In this new webinar, we’ll outline the additional complexities associated with Outdoor DAS sites and the effect that additional and variable delays in the DAS transmission system can have on the distances that can be inferred from TA data.
It’s not too much of a spoiler to say that the answers are that DAS introduces significant additional and variable delays, that lead to inferred TA distances that are similarly variable and that need to be treated with a great deal of caution.
Join us for 90 minutes of technical and investigative detail on this crucial cellular topic.
Previous Webinars
Cell Site Analysis
Martin and Joe explored the fundamentals of cell site analysis, a powerful tool for any investigation to understand geographical movements and association of those involved in the investigation.
Some of the topics covered were:
- What is Cell Site Analysis? Using network data from mobile providers, investigators are able to identify which cell towers a mobile device was connected to during calls, texts, or data sessions, providing critical location data and insight into movements.
- Why does it matter? It helps build timelines, understand movement patterns, and can support or challenge claims in court.
- How does it work? Analysts review network data from mobile providers and interpret patterns of movement and locations.
- What’s best practice? Radio Frequency Propagation Surveys remain the gold standard for confirming actual coverage of a cell site at a given time.
- Case Study: Joe shared a murder investigation where analysed communication data records and timing advance data helped map possible routes and link a suspect’s phone to key locations.
Timing Advance & Device Location Data
Timing Advance was a heavily used form of digital evidence in North America, but how many investigators fully understood what this important form of evidence was telling them? In this talk, telecoms engineers and expert witnesses Joe Hoy and Martin Griffiths from Forensic Analytics in the UK explained the basis for the data that networks capture for timing advance disclosures. They unpacked the benefits and limitations of this data type and provided insight into how best to interpret and present it.
The webinar also presented updated details from ongoing testing of the precision and reliability of timing advance data, helping to shed light on the reliability of any geolocation estimates made using this type of data.
Meet Your Speakers
Joe Hoy
Joe is one of the founders of Forensic Analytics and a cornerstone of the UK's cellular data investigation community, with over 35 years of distinguished experience in telecoms engineering and digital forensics. Joe’s expertise is recognised internationally. He regularly works with forensic organisations in the United States, consulting on complex cases, training investigators and expert witnesses, and contributing to the Scientific Working Group on Digital Evidence (SWGDE). His leadership has made a real-world impact: “There are people alive today who might not be were it not for Joe’s work.”
A hallmark of Joe’s career is authoring the textbook used for training police investigators and digital analysts in the UK and worldwide, including the FBI. Notably, his textbook was recently accepted as a 'learned treatise' in US courts, a significant recognition in the American legal system.
Martin Griffiths
Martin is one of the co-founders of Forensic Analytics and a member of the Chartered Society of Forensic Sciences.
He is an experienced and accomplished telecoms engineer, specialist in RF engineering and an inspiring trainer. Martin is an expert cell site analyst and is a highly sought-after, expert witness in many high-profile and complex cases – his definitive skill as an expert witness is unparalleled in the UK. Martin works on drawing the focus of law enforcement agencies to the importance of having robust cell site best practice embedded in all aspects of their organizations.
Additional Resources:
Training & Webinars: Free intro sessions, self-paced courses, and live classes. Learn more >
Resources: Published papers, knowledge hub case studies, and Joe Hoys book on cell site analysis. Read here >
Support: Our team is here to help anytime. Book a conversation >
Communications Data Analysis & Cell Site Analysis Overview. Read paper here >
Timing Advance and DAS papers. View here >