PRESSURE is mounting on the Tories to launch an inquiry into David Cameron’s working relationship with Lex Greensill, after allegations that he gave the scandal-hit banker privileged access to Whitehall while he was PM.

An investigation by the Sunday Times alleged that the founder of failed financial firm Greensill Capital enriched himself through a multibillion-pound government-backed loan scheme that he himself had designed.

Under the Pharmacy Earlier Payment Scheme, announced in 2012, banks quickly reimbursed chemists for providing NHS prescriptions before recovering fees from the government.