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iPhone Location Data Analysis in Fatal Road Traffic Investigation

Introduction

In a tragic case involving a young driver under investigation for causing death by reckless driving, IntaForensics were instructed to analyse location data obtained from the suspect’s Apple iPhone. Our forensic investigation expert focused on reconstructing the route taken and determining the speed of travel during the journey.

Background

The case centred on a serious road traffic incident in which a fatality occurred. The suspect’s iPhone had been legally accessed, and data provided by Apple included high-resolution GPS location points, recorded at one-second intervals. The data offered an opportunity to reconstruct the journey and assess whether the driving behaviour aligned with allegations of recklessness. 

The Challenge

While the GPS data supplied by Apple was detailed, it required careful processing and expert interpretation to present meaningful insights. The client sought to understand whether the suspect had been travelling at a speed consistent with reckless driving and whether the data could be relied upon to demonstrate that in court. 

The challenge was to convert thousands of raw GPS points into a clear, intelligible analysis of route and speed, using accepted forensic methods that would stand up to legal scrutiny.

The Solution

IntaForensics conducted a forensic analysis of the GPS data using recognised digital investigation tools. Our approach involved the following steps:

Review of Apple location data
We examined the GPS dataset provided by Apple, confirming the timestamp frequency and ensuring data accuracy across the timeline of interest.

Route mapping using forensic software
The GPS coordinates were processed and visualised to produce a detailed map of the journey taken, allowing us to assess driving patterns throughout the route.

Speed analysis through time–distance calculation
Using the time between each location point and the corresponding distance travelled, we calculated the average speed over specific intervals using accepted forensic methodology.

Contextual analysis of road conditions
The route was reviewed in the context of known speed limits to determine whether excessive speed was evident at any stage of the journey.

Expert report production
Our findings were presented in a structured expert witness report, including route maps and speed analysis, formatted for evidential use in court.

The analysis confirmed that the driver had travelled at excessive speed during the journey.

Our Findings

Our expert review demonstrated that the suspect’s vehicle was travelling significantly above the legal speed limit in key segments of the journey. The route and speed calculations, derived from reliable GPS data, provided a clear and objective basis to support the investigation’s findings. 

This case highlights the value of mobile phone location data in serious traffic investigations. The same methodology can also be used to verify compliance with speed limits, and IntaForensics continues to support both prosecution and defence in presenting technical digital evidence with clarity and confidence.

Contact IntaForensics

Contact IntaForensics to discover how our digital investigation services can support your case with integrity, accuracy, and expert insight. Get in touch at sales@intaforensics.com or call us on: 0247 77 17780.

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