The whistleblower suspended for alerting schools to mistakes in the marking of last year's GCSE and A-Levels tells Channel 4 News that "thousands" of papers could have been marked incorrectly.

A Channel 4 News investigation reveals exam boards making money from their own mistakes, how state schools are more likely to lose out, and the man who raised the alarm is suspended.

The public spending watchdog criticises a government department for its handling of private companies whose fraudulent practices cost the taxpayer hundreds of thousands of pounds, writes Jackie Long.

The government has ended a contract with the company A4e to help find unemployed people work after an audit found "weaknesses" in A4e's internal mechanisms for preventing fraud.

As a judge sentences a paedophile gang who passed girls as young as 13 around for sex to a total of 78 years in jail, he has strong words about the influence of race on the case.

A paedophile grooming gang who passed girls as young as 13 around for sex after plying them with drink and drugs are facing jail.

A special report by Channel 4 News raises more questions about the role and influence of experts used by family courts to decide the fate of children and their families.

As MPs debate George Osborne's budget, the National Pensioners Convention lobbies parliament over cuts to older people's tax allowances.