Cartels: policy for witnessing and reporting

Provides general information regarding cartels and a guide on the CMA's policy for cartel informants


Informant rewards policy


The CMA offers financial rewards of up to £100,000 (in exceptional circumstances) for information about cartel activity. If you have information, or have access to information, about cartels and you are considering approaching us to offer that information in exchange for a possible reward, you will find it useful to read the attached guidance.

For more information on cartels, and how to report them to the CMA, visit the ‘Cheating or Competing?’ website

Published 31 March 2014