 There is an onus on a person under Section 34A(1) of the Justices Act 1959 Tasmania, to be brought before a justice as soon as practical once taken into custody for an offence.In the ordinary case of an arrest on suspicion, the arresting officer must have satisfied himself at the time of the arrest that there are reasonable grounds for suspecting the guilt of the person arrested  although the grounds of suspicion need not consist of admissible evidence.If the arresting officer believes the information in his possession to be true, if the information reasonably points to the guilt of the arrested person and if the arresting officer thus believes that the arrested person is so likely to be guilty of the offence for which he has been arrested that on general grounds of justice a charge is warranted, he has reasonable and probable cause for commencing a prosecution.