Competition agencies struggle sometimes looking for evidence of relevant antitrust infringements. The development of different tools such as informant channels of leniency programs can be a good help for them. Once indicia are found, the collection of evidence is also key. Dawn raids, the use of open data and other IT tools are also a relevant element in the work of the agencies. Also, the use of indirect evidence implies some relevant legal and economic issues that require deep attention when creating a file.
