Possibly something related to where GPS data was submitted as evidence.
You can’t prove a negative, but …
Assuming that the principles of relativity mattered to the outcome of a case (which seems unlikely to start with), the theories are so well established that they will not be matters in dispute. That is, the plaintiff/prosecutor and the defence’s experts will agree on the theory so the court can and will take the theory itself as an agreed fact.
Any dispute will be about measurement, or experimental technique, or precision, not about the theory.