Attempts to Commit Offences
A public servant who voluntarily conceals (including via encryption) a known design to commit an offence they have a duty to prevent, intending or knowing it will likely facilitate that offence, faces up to half the offence's maximum sentence (if committed), up to 10 years if the offence is death/life-imprisonment-punishable, or up to one-fourth the maximum sentence (if not committed).
This mirrors Section 58 but specifically for public servants whose job it is to PREVENT the offence in question - a police officer, for instance, who conceals knowledge of a crime they're specifically duty-bound to stop faces harsher, more specific liability than an ordinary citizen would.
A police officer who knows a crime is being planned that it's their specific job to prevent, but conceals that knowledge (including by using encrypted communications to hide it) in order to facilitate the crime, faces significant enhanced liability under this section.