Yes, but that's you insuring yourself on the same vehicle twice, not insuring two different people to drive the same vehicle.
While she can't be a named driver on your policy
I can not add her to my insurance since she is neither a "Partner" nor an "Employee" (Traders insurance) otherwise i would have done so
I don't know OP has actually explained why this is the case? Or did I miss it?
Yes, but that's you insuring yourself on the same vehicle twice, not insuring two different people to drive the same vehicle.
Well, no. Only the policy that makes a claim pays anything.As I said, if its driver a causing a crash it will be that policy only. If its eg vadalism, hit and run etc then both policies are in force and both will trigger.
Well, no. Only the policy that makes a claim pays anything.
You can't double claim against a vehicle (or anything) but you can have multiple insurance policies on one perfectly fine.