Vertaling van "alert your colleagues " (Engels → Frans) :

He made an emotional appeal to all of you, asking that you alert your colleagues to the urgent need for action in this area.
Avec émotion, il vous a exhorté à sensibiliser vos collègues à l'urgence d'agir!

In fact, your colleagues who were first responders at Dawson College will tell us that the fact that they were able to run the killer's licence plate alerted them to information about his identity and important information about his gun ownership.
D'ailleurs, vos collègues qui sont intervenus en premier au Collège Dawson nous diront que c'est leur vérification de la plaque d'immatriculation du tueur qui leur a permis de connaître son identité et de savoir qu'il possédait un fusil.