A 'court gun' is the pistol you wear during your official-type duties at court, or when testifying.
Ideally it should be a Colt Gummint-model-type handgun, or a Browning Hi-Power, although any self-loading pistol constructed of actual metal and having replaceable grips can become a 'court gun', given a little loving attention.
Your intended 'court gun' should be nickled or blued, although stainless steel will work in a pinch.
Send it off to a reputable engraver and have an engraving job done on it. Not too ostentatious, though. Nothing more than 3/4.
Have the screws, safety lever(s), and slide release button(s) hot-blued to a nice electric blue colour.
Now, here's the important part: the grips. The newer kids out there are having grips made of stag, burlwood and exotic woods put on their 'court guns'.
This simply will not do. Stag, burlwood and the like are all very well for your carry gun, and can suffice for a 'BBQ gun', but are just Not Done on a well-executed 'court gun'.
Ivory, or something similar in appearance, which can either be scimshawed or engraved is the grip of choice for a 'court gun'.
Of the two techniques, scrimshaw is the one most used in these parts. Both grip panels, by-the-by. No cheating.
Your choice of art-work is boundless. Some variation on the Mt. Suribachi scene is good, the Alamo is always popular, as is any respectful version of the American or Texas flag, and of course, a tasteful rendition of a young lady is a timeless staple.
Now that you have a proper 'court gun' some thought must be given to supplying a proper holster.
Kydex is out. Nylon is out, verboten, nopenoway.
The only stuff good enough for a 'court gun' is leather. Ranger buckles and engraving - not basket-weave, and for God's sake, don't have your name engraved on the back. That's just...just...tacky.
And a bare minimum of accessories. Not much more than one mag pouch, open-topped preferable, should do it.
Voila! Court gun.
LawDog