Questions for Providers of Expert Opinion on Logged GNSS Evidence

This is the third in a series of papers with the twin ultimate aims of providing exhaustive guidance for expert witnesses asked for opinion on GNSS data evidence and the development of a standard for GNSS data logging. This paper examines admission of GNSS evidence, then draws on a series of questions noted in an earlier work, and attempts to show how an expert can go about answering those questions to the satisfaction of a court. The paper concludes with a recommendation for a “checklist” that an expert witness can go through in order to establish the level of trust that can be assigned to logged GNSS data.