Donor-supported approaches to address corruption have tended to focus on measures that support effective law enforcement in a country that are strategically sequenced. In many cases, independent oversight bodies and mechanisms, including anti-corruption commissions (ACCs), have formed a key part of the changes. ACCs have been seen as important actors in ensuring laws are upheld and cases are prosecuted.For ACCs, the challenge is that they must work within the system that they were set up to oversee. While they may be able to investigate and sanction corruption, they may not be preventing the underlying problem. This is related to the concern that governments must create a supportive context for anti-corruption enforcement.