aleksis/apps/alsijil/templates/alsijil/partials/tardinesses.html

+{% load rules %}
 {% for note in notes %}
-  <span>{{ note.person }} ({{ note.late }}'){% if not forloop.last %},{% endif %}</span>
+  {% has_perm "alsijil.view_personalnote" user note as can_view_personalnote %}
+  {% if can_view_personalnote %}
+    <span>{{ note.person }} ({{ note.late }}'){% if not forloop.last %},{% endif %}</span>
+  {% endif %}
 {% endfor %}