19.— (1) A failure on the part of a member of the Garda Síochána to observe any provision of this Part shall not of itself render that member liable to any criminal or civil proceedings or (without prejudice to the power of the court to exclude evidence at its discretion) shall not of itself affect the admissibility of any evidence obtained otherwise than in accordance with this Part.

(2) A failure on the part of any member of the Garda Síochána to observe any provision of this Part shall render that member liable to disciplinary proceedings.