They both involve the protagonist, a lawyer taking cases of those in need and don't have any other place to turn to. In both, there is finally a big picture connected with the protagonist and a villain.
As I watched Parole Examiner Lee I thought of One Dollar Lawyer. Both are crime, law dramas with some humor here and there. Both have smart male leads. Neither had a romance story line nor was one needed. So if you liked the one you may like the other.
Both dramas are quite similar with their goals
-ML are from Law field (ODL - Lawyer/ BP - Prosecutor)
-ML will do anything to punish the bad guys even though breaking the laws
-ML helps the poor fighting for justice