Corruption can be prosecuted after the fact, but first and foremost, it requires prevention. An entire chapter of the Convention is dedicated to prevention, with measures directed at both the public and private sectors. These include model preventive policies, such as the establishment of anticorruption bodies and enhanced transparency in the financing of election campaigns and political parties. States must endeavour to ensure that their public services are subject to safeguards that promote efficiency, transparency and recruitment based on merit. Once recruited, public servants should be subject to codes of conduct, requirements for financial and other disclosures, and appropriate disciplinary measures. Transparency and accountability in matters of public finance must also be promoted, and specific requirements are established for the prevention of corruption, in the particularly critical areas of the public sector, such as the judiciary and public procurement. Those who use public services must expect a high standard of conduct from their public servants. Preventing public corruption also requires an effort from all members of society at large. For these reasons, the Convention calls on countries to promote actively the involvement of non-governmental and community-based organizations, as well as other elements of civil society, and to raise public awareness of corruption and what can be done about it. Article 5 of the Convention enjoins each State Party to establish and promote effective practices aimed at the prevention of corruption.
The Convention requires countries to establish criminal and other offences to cover a wide range of acts of corruption, if these are not already crimes under domestic law. In some cases, States are legally obliged to establish offences; in other cases, in order to take into account differences in domestic law, they are required to consider doing so. The Convention goes beyond previous instruments of this kind, criminalizing not only basic forms of corruption such as bribery and the embezzlement of public funds, but also trading in influence and the concealment and laundering of the proceeds of corruption. Offences committed in support of corruption, including money-laundering and obstructing justice, are also dealt with. Convention offences also deal with the problematic areas of private-sector corruption.
Countries agreed to cooperate with one another in every aspect of the fight against corruption, including prevention, investigation, and the prosecution of offenders. Countries are bound by the Convention to render specific forms of mutual legal assistance in gathering and transferring evidence for use in court, to extradite offenders. Countries are also required to undertake measures which will support the tracing, freezing, seizure and confiscation of the proceeds of corruption.
In a major breakthrough, countries agreed on asset-recovery, which is stated explicitly as a fundamental principle of the Convention. This is a particularly important issue for many developing countries where high-level corruption has plundered the national wealth, and where resources are badly needed for reconstruction and the rehabilitation of societies under new governments. Reaching agreement on this chapter has involved intensive negotiations, as the needs of countries seeking the illicit assets had to be reconciled with the legal and procedural safeguards of the countries whose assistance is sought.
Several provisions specify how cooperation and assistance will be rendered. In particular, in the case of embezzlement of public funds, the confiscated property would be returned to the state requesting it; in the case of proceeds of any other offence covered by the Convention, the property would be returned providing the proof of ownership or recognition of the damage caused to a requesting state; in all other cases, priority consideration would be given to the return of confiscated property to the requesting state, to the return of such property to the prior legitimate owners or to compensation of the victims.
Effective asset-recovery provisions will support the efforts of countries to redress the worst effects of corruption while sending at the same time, a message to corrupt officials that there will be no place to hide their illicit assets. Accordingly, article 51 provides for the return of assets to countries of origin as a fundamental principle of this Convention. Article 43 obliges state parties to extend the widest possible cooperation to each other in the investigation and prosecution of offences defined in the Convention. With regard to asset recovery in particular, the article provides inter alia that "In matters of international cooperation, whenever dual criminality is considered a requirement, it shall be deemed fulfilled irrespective of whether the laws of the requested State Party place the offence within the same category of offence or denominate the offence by the same terminology as the requesting State Party, if the conduct underlying the offence for which assistance is sought is a criminal offence under the laws of both States Parties".