As I remember from my law enforcement days, the rails were for handcuffing recently arrested suspects awaiting booking. They frequently weren't in a good mood.

Garden City appears to be pretty small, and it looks as though the city limits haven't changed, as evidenced (see what I did there?) by the current map.

Also, having scanned through the Gottscho-Schleisner collection several years ago, it's kind of unusual to see a person in the pictures, at least one so close up.

And the railing in front of the counter is
A) to help the drunks keep their balance
B) to remind you that the jail has bars everywhere
C) for when the officers hold their ballet practice
D) a symbol that judges have to first pass the bar

I'm pretty sure it's a Norge, as I can very nearly make out the logo above the control panel.

Anyone want to ID the GE base station cabinet behind 'Eric'?

Who can name the brand?

Most likely green, as back then police had green lights outside the station.

is a set of bar stools.