Infanticide Act

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The Infanticide Act is the name of two Acts introduced into English Law that started treating the killing of an infant child by its mother during the early months of life as a lesser crime than murder.

England and Wales[edit]

The Infanticide Act 1922 effectively abolished the death penalty for a woman who deliberately killed her new born child, while the balance of her mind was disturbed as a result of giving birth, by providing a partial defence to murder. The sentence that applies (as in other partial defences to murder) is the same as that for manslaughter. This Act was repealed by section 2(3) of the Infanticide Act 1938.

The Infanticide Act 1938 extended this defence to cases where "at the time of the act or omission the balance of her mind was disturbed by reason of her not having fully recovered from the effect of giving birth to the child or by reason of the effect of lactation consequent upon the birth of the child."[1]

Before the partial murder defence of diminished responsibility was introduced to English law in the Homicide Act 1957, this provided an important means of selecting a more lenient sentence for a mother found guilty of killing her infant than the mandatory life sentence or death sentence applying to murder at the time.

In recent years, it has become very rare for a mother who kills her infant child to receive a custodial sentence, except in very exceptional circumstances.[2]

In a report the terms of which were agreed on 1 November 2006, the Law Commission recognised the difficulties facing the court when a defendant is in denial and unwilling to submit to psychiatric examination, as she perceives the purpose of such examination as an attempt to prove her guilt. In such cases, the mother is unlikely to have any other defence and is therefore more likely to be convicted of murder.[3]

Northern Ireland[edit]

The Infanticide Act (Northern Ireland) 1939 makes similar arrangements for Northern Ireland.


The English Infanticide Acts also formed the basis for similar legislation in Canadian criminal law, which was enacted via an amendment to the Criminal Code in 1948. It is still in the Criminal Code[4] and has not been updated since its enactment in 1948.[5] It is an indictable offence, and carries a penalty of imprisonment not exceeding five years.[6]

See also[edit]


  1. ^ Infanticide Act, 1938, Second Reading, House of Lords Hansard. 22 March 1938
  2. ^ Marks, Maureen (2008). "Infanticide" (PDF). Psychiatry. 8 (1): 10–12. doi:10.1016/j.mppsy.2008.10.017. Retrieved 29 October 2013.
  3. ^ The Law Commission. Murder, Manslaughter and Infanticide. Law Com 304. HC 30. TSO. London. 28 November 2006. Paragraph 1.51 at page 13. See also Consultation Paper No 177. Paragraphs 9.97 et seq.
  4. ^ Criminal Code, RSC 1985, c C-46, s 233.
  5. ^ Vallillee, Eric (2015). "Deconstructing Infanticide". University of Western Ontario Journal of Legal Studies. 5 (4): 3. Retrieved 11 April 2015.
  6. ^ Criminal Code, RSC 1985, c C-46, s 237.