A police officer abetting the commission of an offence by concealing a design is punishable with?

S. 119. Public servant concealing design to commit offence which it is his duty to prevent.— Whoever, being 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, voluntarily conceals, by any act or illegal omission or by the use of encryption or any other information hiding tool, the existence of a design to commit such offence, or makes any representation which he knows to be false respecting such design, if offence be committed.—shall, if the offence be committed, be punished with imprisonment of any description provided for the offence, for a term which may extend to one-half of the longest term of such imprisonment, or with such fine as is provided for that offence, or with both; if offence be punishable with death, etc.—or, if the offence be punishable with death or imprisonment for life, with imprisonment of either description for a term which may extend to ten years;