Mark Johnson, a senior manager at HSBC, was arrested in New York for his involvement in a conspiracy to rig currency benchmarks. The Department of Justice has been investigating this case for over three years, facing challenges in prosecuting individuals due to difficulties in gathering evidence. The focus of the investigation is shifting from companies to individuals, with some cooperating with authorities. The outcome of these investigations remains uncertain, but recent actions indicate a move towards holding individuals accountable.

How long has the Department of Justice been working on the 4X currency investigation?

What does it indicate when a company turns states evidence in an investigation?