The United States requested the extradition of Usman Ismail Patel, a US citizen residing in South Africa, to stand trial in the US on multiple counts of ‘structuring’ cash deposits to evade currency transaction reporting requirements, allegedly committed between 2005 and 2007 in California. The request was made under the Extradition Act 67 of 1962 and the extradition treaty between South Africa and the United States. Patel argued that extradition was impermissible because, at the time the conduct occurred, equivalent conduct was not criminalised in South Africa, as the relevant provisions of the Financial Intelligence Centre Act 38 of 2001 only came into operation in 2010. He also challenged the validity of the certificate furnished by US authorities under s 10(2) of the Extradition Act.