The EU is reconsidering how it grants market access to overseas financial firms. It's being seen as a blow to the City of London and may potentially scupper any potential backup plans to maintain a European relationship after Brexit. No decision has been taken, but any tightening of current regulations would be a clear signal to Britain that Brussels is willing to play hardball in negotiations once the country leaves the bloc. To find out more about the potential effects on banks in the UK, Matt Cox has been speaking to Chris Justham, Relationship Manager at Seven Investment Management.