As a means of familiarizing newly assigned sergeants and lieutenants with the policies and procedures of Custody Division regarding critical incidents, and to mitigate risk liability issues, attendance in the Division's 40 hour Custody Incident Command School shall be mandatory during the first three months of assignment to Custody Division. Failure to attend Custody Incident Command School within the first three months of assignment shall be documented in a memorandum from the unit commander to the Division commander.