Cartels: policy for witnessing and reporting
Provides general information regarding cartels and a guide on the CMA's policy for cartel informants
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The CMA offers financial rewards of up to £250,000 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