Austin is a Distinguished Supporter of the British Humanist Association.
John Austin signed the February 2009 Early Day Motion 754: MMR Vaccine and the Media supporting the use of the MMR vaccine. The motion expressed disappointment with the reporting of the vaccine by Jeni Barnett on her LBC radio show in January 2009, and expressed the hope that future reporting of the issue of MMR would be less sensationalist and more evidence-based.
In May 2008 in the abortion amendments to the Human Fertilisation and Embryology Bill (now Act), John Austin voted to keep the current time limit of 24 weeks in line with the scientific and medical consensus.
John Austin 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."
Policymaking On Drugs And Alcohol
John Austin signed Early Day Motion 2244 calling for Government policy on alcohol and drugs misuse and harm to be based on scientific evidence. The motion came shortly after the sacking of Government drug adviser David Nutt by Home Secretary Alan Johnson in 2009.
Libel Law Reform
In January 2010, John Austin 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.