Tribe__Tickets__Attendees::user_can_manage_attendees()
Plugin: Event Tickets
Method: Determines if the current user (or an ID-specified one) is allowed to delete, check-in, and undo check-in attendees.
tribe_tickets_caps_can_manage_attendees
Plugin: Event Tickets
Filter Hook: Allows customizing the caps a user must have to be allowed to manage attendees.