In May 2008 in the abortion amendments to the Human Fertilisation and Embryology Bill (now Act), Andrew MacKinlay voted for the abortion time limit to be lowered to 12 weeks against scientific and medical consensus which is currently 24 weeks. After four separate parliamentary votes on varying time limits, the majority of MPs voted to keep the abortion time limit at 24 weeks, in keeping with scientific and medical consensus, hence no abortion amendments were added to the bill.
Following the adverts bought by the Atheist Bus Campaign on public transport in January 2009, Andrew MacKinlay signed Early Day Motion 424 claiming that the rationale behind the adverts was that non-religious people can be less careful about their lifestyle choices and life's consequences.
Andrew MacKinlay was one of 79 MPs who signed Early Day Motion 377 noting the achievements of Charles Darwin, and calling for Darwin's birthday to be designated a public holiday to honour "one of the fathers of modern science and one of Britain's greatest, if not the greatest, scientific minds."
Libel Law Reform
In December 2009, Andrew MacKinlay signed Early Day Motion 423 calling for a reform of the English libel law. The motion noted that human rights activists, scientists, writers and journalists are currently prevented from publishing, and the public prevented from reading, matters of strong public interest due to the chilling effect of the law.
The motion was tabled following the recent formation of Libel Reform Coalition, which has the backing of Index on Censorship, English PEN and Sense about Science. Sense about Science have been campaigning in defense of a member of its board of trustees, author and journalist Simon Singh, who has been sued for libel by the British Chiropractic Association. They issued a statement entitled "The law has no place in scientific disputes".