Section 31 of the Act of 1967 is hereby amended by -
(a) the substitution of the following subsection for subsection (1):
"(1) Whenever a person is brought in custody to a Garda Síochána station by a member of the Garda Síochána, the sergeant or other member in charge of the station may, if he considers it prudent to do so and no warrant directing the detention of that person is in force, release him on bail and for that purpose take from him a recognisance, with or without sureties, for his due appearance -
(a) before the District Court at the next sitting thereof in the District Court Area in which that person has been arrested or at any subsequent sitting thereof in that District Court Area during the period of thirty days immediately following such next sitting, or
(b) in the case of the District Court in the Dublin Metropolitan District, before the next sitting of that Court or at any subsequent sitting thereof during the period of thirty days immediately following such next s
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