Dudgeon v United Kingdom (1981)
The European Court of Human Rights heard a challenge to Northern Ireland's laws criminalising homosexual acts, which had been retained after England and Wales decriminalised in 1967. The court found the laws violated the right to respect for private life.
Northern Ireland decriminalised homosexual acts in 1982.
The ruling became the template for treating private, consensual sex as protected by privacy guarantees.
It established the core reasoning the Privy Council used: criminal law reaching into private, consensual sex between adults fails a proportionality test.
