Coordination Failure Diagnostics (CFD) is a model that analyses real market processes with the help of time pattern analysis and investigates whether they operate efficiently. For competition authorities CFD can be employed to detect illegal covert cartels. The CFD cartel-audit should enable the detection of cartels via characteristic market process patterns. This is based on the assumption that existing cartels cause failures in the observed process patterns. The CFD cartel-audit attempts to draw conclusions from these process patterns in order to find hidden cartels and to engage antitrust agencies into additional more detailed audits.