The South African Reserve Bank (SARB), acting as the Treasury for purposes of the Currency and Exchanges Act 9 of 1933, investigated transactions involving Mr Khumalo and Mawenzi Resources and Finance Company (Pty) Ltd from 2002, suspecting contraventions of the Exchange Control Regulations. In August 2008 SARB issued a notice of attachment under regulation 22C(1) attaching various untainted assets of the respondents. The respondents approached the North Gauteng High Court for urgent relief, contending that regulation 22C(1) was invalid because it failed to prescribe a maximum duration for attachments, allegedly contrary to section 9(2)(g) of the Act. The High Court upheld this argument, declared the regulation invalid, and set aside the attachment. SARB appealed to the Supreme Court of Appeal.