@Nintendocat: The regular 
Young Kindaichi manga ran in 
Weekly Shōnen Magazine, while this one runs in 
Evening, which is a seinen mag. Now, even then, 
Magazine's always been a bit edgy for its nominal demographic, but as you say, there's a pretty noticeable difference in the type of material 
Evening allows. Remember, aside from "I became infertile after catching chlamydia from my unfaithful husband," the Tower Mansion Madam arc also had a full-on sex scene with nippléd nudity -- you sure won't see that in 
Detective Conan. (Hell, you won't even see it in 
Love Hina.)
By the way, this is probably old news, but I only just found out recently that "Amagi Seimaru" is just one pseudonym out of more than half a dozen, and the guy is unbelievably prolific. Among tons of other things, also wrote fellow Irregular Scans title 
Psychometrer Eiji and 
Get Backers. The latter was especially shocking because I'm old enough to remember when yaoi fanart from it was literally inescapable...
Anyway, thanks for the great translation work as always, guys.