(1) Every police officer has throughout Saint Lucia and in several bays, creeks, and inlets thereof, and also on board any vessel in which any indictable offence, or any offence punishable on summary conviction is or may be suspected to be committed, all the authorities, privileges, protection and advantages, and is liable to all the duties and responsibilities as that police officer duly appointed now has or is subject or liable to or may hereafter have or be subject or liable to either by the common law of England or by virtue of any law which now is or which may hereafter be in force in Saint Lucia.