The main characters are working as labor inspectors and the drama in general revolves around their profession through many cases the main leads encounter. Buuuut Special Inspector Jo deals with many other themes too while Dandarin Rodo Kijun Kantokukan is solely focusing on the work aspect
Both shows are satires which also have:
> Eccentric characters.
> Team assembling/teamwork.
> The leads are working against corrupt people with a lot of power.
Underdog Tale
Fighting and Taking Down Corrupted Bad Guys
Fierce and Righteous Main Leads
Deals with Issues Facing Their Community
Colorful Supporting Cast
Comedic Use of Visual Gags
Both dramas are fighting crimes
UC has special power
SL is "normal" fighting, but with plenty funny moments. Its hidden gem
If you like action and comedy in the same time, go fo SL. You will love it from very first episode
The plots to both these dramas is very similar - the little guy sticking it to the corrupt big guys. Plus they're both over-the-top, feel good comedies.