Section 57

Any person who at any time hinders, obstructs or molests the Authority or any of its employees, agents or contractors in the performance and execution of their duty or of anything which they are respectively empowered or required to do by virtue or in consequence of this Enactment, or removes any mark set up for the purpose of indicating any level or direction necessary to the execution of works authorised by this Enactment shall be guilty of an offence.

Offences in connection with safety of vessels, etc..