It is ironic that the promotional material used by law firms to differentiate themselves from one another is so often as formulaic as it is contrived. Alongside the usual bluster about seamless international service and uncompromising client focus can invariably be found kaleidoscopic images of multi-racial staff, replete with heart-warming mission statements and worthy declarations of beneficent intent.

Yet a brief glance at the make-up of the senior end of the UK legal profession – with just 3% of partners at top 100 firms hailing from ethnic minority groups – reveals a yawning gap between spin and reality.