Warrant to convey prohibited immigrant back on vessel

The master of any vessel may, on the desertion of any seaman or the landing of any stowaway or prohibited immigrant from his vessel, apply to a magistrate for a warrant to arrest and convey back on board the vessel such seaman, stowaway or prohibited immigrant, and the magistrate shall grant the application unless there are special reasons for not doing so, and the master shall not incur any liability at law for anything done by virtue of such warrant. land.