My true "EDC" guns being SP101 snubbies, I will simply carry another of my several SP101 snubbies in its place, should one be collected for testing at the firearms examiner, or be held as evidence. I do often carry a 1911 or 4" S&W Model 19, and if one were to taken, I have the other. I also have the option of carrying my personally-owned duty P229R, and I could pull one of my several GP100 revolvers from secure storage.
This is not a mere theoretical exercise for me, as my oldest GP100, that I bought in the very early 1990s, was collected for ballistic testing after an on-duty shooting in 1993. My Safariland duty holster was also designed to fit a Colt Python, and I carried my Stainless Python for several weeks, while waiting for my GP100 to be returned. I still have that GP100, though I sold or traded the Python somewhere along the way.