What does Section 119 say about a public servant concealing the design to commit an offence which it is his duty to prevent?
Section 119 deals with a public servant intending to facilitate or knowing it to be likely that he will thereby facilitate the commission of an offence, which it is his duty as such public servant to prevent. If the offence is committed, the punishment is imprisonment for a term that may extend to one-half of the longest term provided for that offence, or with such fine as is provided for that offence, or with both. If the offence is punishable with death or imprisonment for life, the punishment is imprisonment of either description for a term that may extend to ten years. If the offence is not committed, the punishment is imprisonment for a term that may extend to one-fourth part of the longest term of such imprisonment or with such fine as is provided for the offence, or with both.

An illustration is provided for better understanding. [Chapter 5, Section 119]