"It is made the duty of every Commanding Officer in the Department, to arrest and send to these Headquarters, under guard, every officer or soldier who may be found absent from his command, without the regular leave in writing, prescribed by Regulations and General Orders"

This quote by John H. Morgan is referring to the duty of Commanding Officers in the Department to make sure that all officers and soldiers exist and accounted for. It is their responsibility to arrest and send out to Headquarters any officer or soldier who is absent from their command without the appropriate written leave as prescribed by Regulations and General Orders. This is an essential duty as it makes sure that all workers exist and represented, which any unapproved absences are dealt with in a timely way. It also serves to preserve order and discipline within the Department, and to make sure that all workers are following the regulations and orders stated. This quote acts as a reminder of the significance of Commanding Officers in the Department to ensure that all workers are present and accounted for, and that any unauthorized absences are dealt with in a prompt way.