For detective work, I'd also highly recommend the Mean Street. I absolutely love my DWMS, it's an awesome little knife. Mean Streets of any flavor are getting scarce, though. As Ryu mentioned, the Badgers would also work if you're a bigger guy, and in the new E-handled versions, are more available. If you want one of the earlier straight-handle versions, you'll find that they're even more scarce than the Mean Streets.
If Andy doesn't have one, give the Busse gang a call. They had a Lean Mean Street and a couple of standard Mean Streets at the Wolverine Knife Show in Novi. Dunno if they sold them all that weekend, but that would be my second guess. Also, post a wanted ad over the sale forums, and keep an eye peeled in the "For Sale" section.
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Don LeHue
"You want what? On the friggen' ceiling?!" - Michaelangelo Buonarroti