Steane, a British actor, made propaganda broadcasts for Germany during WWII to protect his family from a concentration camp. The Court of Appeal held that for the offence of doing acts likely to assist the enemy with intent to assist the enemy, the prosecution must prove the accused intended to assist the enemy, not merely that he intended to do the acts.

Beneficial interests in family homes require financial contributions or clear common intention

Household contributions can create constructive trust interest in family home

Secret trusts can be established by clear evidence of intention, communication and acceptance.

Family arrangements presumed to lack contractual intention despite presence of consideration.

This Supreme Court case established a new test for dishonesty in criminal law, overruling the subjective element of the Ghosh test. The case arose from a professional gambler's civil claim against a casino after being accused of cheating at baccarat through edge-sorting.

R v Martin established that the defence of self-defence is not available to defendants who use excessive force against burglars, even when acting under psychiatric conditions. The case clarified that duress of circumstances cannot excuse disproportionate defensive action in one's home.

Woman gains property interest through detrimental reliance despite no financial contribution

Separated spouses' agreements presumed legally binding unlike harmonious domestic arrangements

Established that a continuing act can satisfy the actus reus and mens rea requirements for assault, even if formed at different times. The defendant accidentally drove onto a police officer's foot but then refused to move when asked.

R v Ghosh established the test for dishonesty in criminal law, requiring both objective and subjective elements. The case created a two-stage test that was fundamental to determining dishonesty in fraud and theft cases until the Supreme Court replaced its subjective second limb with a wholly objective test in Ivey v Genting Casinos [2017] UKSC 67.

Mistaken payments create immediate constructive trusts giving equitable proprietary interests.

Informal family arrangements can create binding contracts with sufficient evidence of intention.

Gammon contracted to build a building in Hong Kong but deviated from approved plans in material respects, breaching building regulations. The Privy Council addressed when mens rea is required for statutory offences, establishing a presumption favouring mens rea that can be displaced only in limited circumstances for regulatory offences of genuine public concern.

Matrimonial property governed by ordinary property law, not special family asset doctrine

House of Lords case establishing that foresight of consequences is evidence of intention but not equivalent to intention itself in murder cases.

Cohabiting partner denied property share despite 19-year relationship and domestic contributions

This case established that a duty of care in criminal law can arise from voluntary assumption of responsibility for a vulnerable person. Stone and Dobinson were convicted of manslaughter after Stone's sister died from malnutrition while living in their care, despite their failure to seek adequate medical help.

Chief Rabbi clause valid; expert determination can cure conceptual uncertainty in trusts

House of Lords sets strict test for claiming beneficial interest in property

Gifts to unincorporated associations valid as beneficial gifts to members under contract-holding theory.

Informal words 'money is as much yours as mine' created valid express trust

Children's interests relevant but don't trump creditors' rights in family home sales

Court establishes three certainties doctrine for valid trust creation

Secret trusts bind trustees despite beneficial gifts under wills

Legal duty plus additional benefit can constitute valid consideration for contract formation.

Son who built on father's land acquired equitable interest through proprietary estoppel

Purpose trusts valid when beneficiaries have direct enforceable interest

A mortgage term postponing redemption is valid if not oppressive or unconscionable

Secret trusts bind accepting trustees despite non-acceptance by co-trustees

Proprietary estoppel may fail where equity has been satisfied by acquiescence