The funding modalities of investigative and prosecutorial agencies may lend themselves to potential for political manipulation and interference. This U4 Expert Answer analyses the independence, source of funding and course of anti-corruption prosecutions undertaken in Vietnam, Korea and Nigeria and provides information on anti-corruption agencies in Guatemala and Montenegro. It concludes that funding modalities are not the only relevant factor for prosecutional effectiveness and that the whole National Integrity System needs to be mobilised to address risks of political interference.