What do the black and red numbers mean next to Alerts in the Communications box? Chris Armstrong Follow The black number refers to the number of participants who have sent alerts. In the case below, 11 participants have sent alerts. The red number refers to the total pieces of evidence. In the case below, the total amount of evidence is 30. Was this article helpful? 1 out of 2 found this helpful Have more questions? Submit a request Return to top Related articles What are the eDofE age rules?