The use of Satellite Navigation Systems (SNS) has become increasingly common in recent years. The wide scale adoption of this technology has the potential to provide a valuable resource in forensic investigations. The potential of this resource is based on the ability to retrieve historical location data from the device in question while maintaining forensic integrity. This paper presents a methodology to acquire forensc images of the TomTom One satellite navigation unit. This methodology aims to be comprehensive and straightforward, while maintaining forensic integrity of the original evidence. However, in consideration of the aforementioned methodology, ti should be noted that the defined method may not extract all potential evidence and the viability of collected evidence is dependent on future research into the analysis of said evidence. In order to address this consideration, research into this area is currently ongoing.