@Trashmi 

Thank You for the suggestions, Usually I watch alternatively between two section of genres..
If i watch a Thriller/Action/Crime then i watch a Romance/Comedy/Youth..

So Kill It will probably be good, Sketch definitely is something I would love to watch.. I like Suspense Thrillers the most, Duel, Psycho Diary, Black, Guardians they are all in my list..  Criminal Minds, I have heard about the US/UK one before.. Partners of Justice seems unique if it focuses more on Forensic, Since I dont remember watching a KDrama about Forensic.