Stanford International Bank ("SIB") collapsed into insolvency on 15 April 2009. SIB’s case is that it was defrauded by its owner, Mr Stanford, via a Ponzi scheme. Through its liquidators, SIB made two claims against HSBC Bank plc, which had operated bank accounts for SIB until they were frozen in February 2009. The first claim was that HSBC negligently failed to spot signs that SIB was being run as a Ponzi scheme (the Quincecare claim). The second claim was that HSBC dishonestly assisted Mr Stanford’s breaches of fiduciary duty.
HSBC applied to strike out both claims. It succeeded in the High Court as regards the dishonest assistance claim but SIB’s Quincecare claim survived. Both parties appealed to the Court of Appeal, which dismissed SIB’s appeal (upholding the decision to strike out the dishonest assistance claim) and granted HSBC’s appeal in respect of the Quincecare claim (striking it out as well). SIB now appeals to the Supreme Court.

This appeal concerns the meaning of a condition that was attached to the grant of planning permission for a development site in the outskirts of Swindon. The proposed development included two roads, a "North-South access road" which ran southward from a new junction with the A420 and continued to the southern boundary of the site, and an "East-West spine road" which ran to the eastern boundary of the site from a roundabout on the North-South access road. Swindon Borough Council’s planning committee granted outline planning permission for the site subject to a number of conditions, one of which provided that:
"The proposed access roads, including turning spaces and all other areas that serve a necessary highway purpose, shall be constructed in such a matter as to ensure that each unit is served by fully functional highway, the hard surfaces of which are constructed to at least basecourse level prior to occupation and bringing into use.
                Reason: to ensure that the development is served by an adequate means of access to the public highway in the interests of highway safety."
The developer subsequently applied for a certificate under section 192 of the Town and County Planning Act 1990 to confirm that the formation and use of private access roads within the development would be lawful. Swindon refused to issue the certificate. The Secretary of State’s Planning Inspector allowed the developer’s appeal against Swindon’s refusal of the certificate. The High Court allowed Swindon’s application for a statutory review of the Inspector’s decision. The developer then successfully appealed the judgment to the Court of Appeal. Swindon now seeks permission to appeal to the Supreme Court.