Last month a report by a government advisor, Lawrence Tomlinson, accused The Royal Bank of Scotland of forcing some viable businesses into insolvency. The Bank has denied Tomlinson's claims and has asked a leading law firm to carry out an independent investigation. With their findings due to be published shortly, File on 4 assesses the evidence.

Jane Deith speaks to families who claim their companies were unfairly forced to the wall and their lives ruined as a result of the actions of the Bank's Global Restructuring Group.

Billed as the equivalent of an intensive care unit designed to help nurse distressed businesses back to health, did the Global Restructuring Group kill some of them off instead? And was RBS able to profit as a result?

With a rising tide of complaints against the taxpayer-owned bank, the Financial Conduct Authority is beginning its own investigation.

So, was RBS being predatory or prudent?

Reporter: Jane Deith