The Police in Delhi is the most corrupt, incorrigible, hand-in-glove with the violators of law - the political leaders, and the rich property owners - as well as the encroachers who pay them weekly or monthly. With the consent of the Police there cannot be any unauthorised settlers on the public land, green areas, footpaths, etc. I cannot give Delhi Police from top to bottom any certificate of orderliness.
------- Edited on 2017-11-18 -------
Law and Order includes not only the violence, but also other assignments like encroachments and unauthorised constructions on public land, foot paths, etc. in which they are the partners-associate. Therefore, my assessment is rather poor about them.