This system depends on authorities being able to rely on each other to carry out fact-finding measures on each other's behalf in order to foster cooperation and mutual assistance among the Member States.
Cuid dhílis den chóras sin is ea na húdaráis a bheith in ann brath ar a chéile chun bearta bailithe fíoras a dhéanamh thar ceann a chéile le gur féidir an comhar agus an cúnamh frithpháirteach a chothú i measc na mBallstát.