Whistleblowing has proven to be among the most effective means to expose crime and corruption worldwide. Whistleblowers perform an important, and in some instances, a life-saving public service. More fraud is exposed by whistleblowers globally than all other methods combined.

However, exposing hidden crimes and the evidence that can prove them is as dangerous as it is essential. Internationally, 80 percent of victimized whistleblowers lose their retaliation cases, and countless whistleblowers are fired, harassed, sued, prosecuted and physically attacked every year.

This guide explores many of the main obstacles whistleblower caseworkers face when investigating and resolving reports, and many of the risks that confront whistleblowers when exposing wrongdoing. Practical solutions and advice are offered, based on the first-hand experience of whistleblowing and anti-corruption professionals.