Before this, she was a Lecturer in Law at the Queen's College, University of Oxford. Farrah’s research spans public law, legal theory and family law. Her recent work on constitutional statutes, religious freedom, the doctrine of legitimate expectations, the duty to give reasons, social rights adjudication and religious tribunals has been published in the Cambridge Law Journal, the Modern Law Review, the Oxford Journal of Legal Studies, Public Law, and Child and Family Law Quarterly. Her book Religious Freedom under the Personal Law System was published by Oxford University Press in 2016.