On March 15, 2016, the Serious Fraud Office announced that it had closed its investigation relating to allegations of fraudulent conduct in the foreign exchange market. The SFO has concluded there was insufficient evidence for a realistic prospect of conviction, based on the information and material from the Financial Conduct Authority. The SFO stated that there were reasonable grounds to suspect fraud had been committed. However, the available evidence was considered not to satisfy the evidential tests for prosecution under English law. The SFO considers that the evidential deficiency could not be remedied by extending the investigation.
The SFO press release is available at: https://www.sfo.gov.uk/2016/03/15/sfo-closes-forex-investigation/.