Some more information which has come to light when referring to the use of Welsh ranks. In particular the rank Cwnstabl (Constable) when used in connection with Ditectif (Detective) it becomes Gwnstabl.
The word changes depending on where it appears in a sentence and what context it is being used in, therefore Gwnstabl replaces Cwnstabl when used in conjunction with Ditetcif (Detective. Conversely it should in point of fact be Gwnstabl Ditectif but that is taking it a little to far grammatically, when engraving medals perhaps.
Where as the same is not true when using Prif Arolygydd or Chief Inspector, the Prif or Chief/Main remains the same way around and not Arolygydd Prif as you would think.
All very confusing, but I thought it might be of assistance to someone in the future when one of these medals comes onto the market.