Unlawfully"
For the purposes of sections 58 and 59 of the Offences against the Person Act 1861, and any rule of law relating to the procurement of abortion, anything done with intent to procure a woman's miscarriage (or in the case of a woman carrying more than one foetus, her miscarriage of any foetus) is unlawfully done unless authorised by section 1 of the Abortion Act 1967 and, in the case of a woman carrying more than one foetus, anything done with intent to procure her miscarriage of any foetus is authorised by the said section 1 if the ground for termination of the pregnancy specified in subsection (1)(d) of the said section 1 applies in relation to any foetus and the thing is done for the purpose of procuring the miscarriage of that foetus, or any of the other ground for termination of the pregnancy specified in the said section 1 applies.