21.—(1) A duly completed statement purporting to have been supplied under section 17 shall, until the contrary is shown, be sufficient evidence in any proceedings under the Road Traffic Acts, 1961 to 1994, of the facts stated therein, without proof of any signature on it or that the signatory was the proper person to sign it, and shall, until the contrary is shown, be sufficient evidence of compliance by the member of the Garda Síochána concerned with the requirements imposed on him by or under this Part prior to and in connection with the supply by him pursuant to section 17 (2) of such statement.

(2) A duly completed form under section 18 shall, until the contrary is shown, be sufficient evidence in any proceedings under the Road Traffic Acts, 1961 to 1994, of the facts stated therein, without proof of any signature on it or that the signatory was the proper person to sign it, and shall, until the contrary is shown, be sufficient evidence of compliance by the F23[designated doctor or designated nurse] concerned with the requirements imposed on him by or under this Part.

(3) A certificate expressed to have been issued under section 19 shall, until the contrary is shown, be sufficient evidence in any proceedings under the Road Traffic Acts, 1961 to 1994, of the facts stated therein, without proof of any signature on it or that the signatory was the proper person to sign it, and shall, until the contrary is shown, be sufficient evidence of compliance by the Bureau with the requirements imposed on it by or under this Part or Part V of the Act of 1968.

(4) In a prosecution for an offence under section 49 or 50 of the Principal Act or section 13, 14 or 15 it shall be presumed until the contrary is shown that each of the following persons is a F23[designated doctor or designated nurse, as the case may be]—

(a) a person who by virtue of powers conferred on him by this Part took from another person a specimen of that other person’s blood or was provided by another person with a specimen of that other person’s urine,

(b) a person for whom, following a requirement under section 13 (1), 14 (4) or 15 (1) to permit the taking by him of a specimen of blood, there was a refusal or failure to give such permission or to comply with a requirement of his in relation to the taking of such a specimen,

(c) a person for whom, following a requirement under section 13 (1), 14 (4) or 15 (1) to provide for him a specimen of urine, there was a refusal or failure to provide such a specimen or to comply with a requirement of his in relation to the provision of such a specimen.

F23[(5) Where under section 13, 14 or 15 a designated doctor, or under section 13 or 14 a designated nurse, states in writing that he or she is unwilling, on medical grounds, to take from a person a specimen of his or her blood or be provided by him or her with a specimen of his or her urine, the statement signed by the doctor or nurse, shall, in any proceedings under the Road Traffic Acts 1961 to 2006 be sufficient evidence, until the contrary is shown, of the facts stated in it, without proof of any signature on it or that the signatory was the proper person to sign it.]