Rule of Interpretation: 4) Purposive Approach
Looks at positive social purpose of the Act, and the positives to why it was created (spiritual law instead of literal meaning)
Lord Scarman: 'Parliament is in charge of their own actions and judges do not have the authority to change them'
CASE: R V Registrar General: Charles Smith, had 2 murder convictions and was detained in a mental institution, wanted to obtain his birth certificate, but information was not given in fear he would kill his birth mother.