Competition policy can do much to fight bid rigging and co-operate with procurement bodies to contribute to better and cheaper public services. Discover some inspiring initiatives taken by competition authorities and international organisations illustrated by Renato Ferrandi, the Manager of the OECD-GVH Regional Centre for Competition, together with Despina Pachnou, OECD Competition Experts, and Attila Karsay, from the Cartel Detection Section of the Hungarian Competition Authority.