As to the gun for a Detective......

The Smith was issued by many Police Dept.s throughout the late 80s into the mid-2000s. Thou most Detectives tend to opt for a lightweight compact ..... like the 6906 ..... vs full size all steel like either of the guns mentioned.

Don't think/know of any Dept in the US that issued the CZ

Leather holster....there are dozens of makers can make you 'exactly" what you want for ..... $100 or so....... for either gun.