Even more interesting,
it would seem, that more than one party is now a defendant,
so either the Government of the U.S.A. is a defendant or there were more than one adult in the car that was on the wrong side of the road.

“The Dunn family’s spokesman has said they will tell the U.S.A. Government the motion will be resisted strenuously”.
https://www.standard.co.uk/news/uk/harry-dunn-anne-sacoolas-job-secret-national-security-b947479.html

The motion states that “although defendants were employees of the United States Government at the time”