Mater semper incertus est: who's your mummy?

Area of Science:

• Legal Studies
• Sociology
• Bioethics

Background:

• English law broadly defines 'father' but retains a biology-centric definition for 'mother', rooted in the Roman principle 'mater semper certa est'.
• Motherhood can be established through childbirth, gamete donation, or caregiving, complicating legal certainty, especially in surrogacy.
• Current UK law recognizes commissioning fathers in traditional surrogacy but not commissioning mothers in traditional or gestational surrogacy.

Purpose of the Study:

• To examine the legal definition of motherhood in English law, particularly concerning assisted reproduction and surrogacy.
• To question the continued reliance on biological definitions ('mater est quam gestation demonstrat') in the face of diverse reproductive methods.
• To explore the potential for a new legal principle, 'mater semper incertus est', reflecting the uncertainty of motherhood in surrogacy.

Main Methods:

• Analysis of English legal definitions of 'mother' and 'father'.
• Comparative review of legal recognition in traditional vs. gestational surrogacy and other assisted reproduction methods.
• Philosophical and sociological examination of the concept of motherhood.

Main Results:

• The legal definition of 'mother' in the UK remains predominantly biological, failing to consistently recognize diverse forms of motherhood.
• Inconsistencies exist in applying legal maxims like 'mater est quam gestation demonstrat' to surrogacy compared to other assisted reproduction.
• The law's approach to commissioning mothers in surrogacy arrangements highlights a gap between biological and social/functional definitions of motherhood.

Conclusions:

• The current legal framework for defining 'mother' is outdated and requires reform to reflect modern reproductive technologies and social realities.
• A shift from a purely biological definition to one that acknowledges different forms of motherhood, including social and intentional, is advocated.
• The article argues for a legal evolution beyond biological certainty to embrace the complexities of contemporary motherhood.