The Posse Comitatus Act and using military as a police force
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THE POSSE COMITATUS ACT AND USING MILITARY AS A POLICE FORCE
The Posse Comitatus Act, which was enacted in 1878 and codified as 18 U.S.C. § 1385, states:
“From and after the passage of this act it shall not be lawful to employ any part of the Army of the United States, as a posse comitatus, or otherwise, for the purpose of executing the laws, except in such cases and under such circumstances as such employment of said force may be expressly authorized by the Constitution or by act of Congress; and no money appropriated by this act shall be used to pay any of the expenses incurred in the employment of any troops in violation of this section and any person willfully violating the provisions of this section shall be deemed guilty of a misdemeanor and on conviction thereof shall be punished by fine not exceeding ten thousand dollars or imprisonment not exceeding two years or by both such fine and imprisonment.”
The Posse Comitatus Act disallows the use of federal troops as a police force unless Congress overrides it, or the use of force is “expressly authorized by the Constitution.” However, the Constitution does not provide for military use as a police force in any capacity, so this phrase has been one that the courts have not been able to answer.
Congress has, however, authorized the use of the Army in some situations as shown in U.S. Codes Sections 251-255 and 271-284. Although, those codes ensure that the military is not used directly as a police force. However, there are some caveats to this. First, the Coast Guard has, by act of Congress, been designated as having law enforcement responsibilities. Second, during the Wounded Knee occupation in 1973, the military was given specific and limited powers for the military to assist the police.
It should also be noted that the only branches of the military that are covered by the Posse Comitatus Act are the Army, and through later inclusion, the Air Force. The Navy and the Marine Corps are restricted by other legislation that appears in the Department of Defense Instruction. The Coast Guard is used as a police force unless it is called into war when it is placed within the Navy, and thus restricted by the Department of Defense. The National Guard is unique, in that it is both connected with federal and state law. While this can be a matter of interpretation, if the federal government makes a directive to the National Guard, it is blocked from the use as a police force because then it comes under the Department of Defense Instruction.
Why is it important to discuss today?
In recent years President Trump has called for the use of federal troops for domestic purposes on two occasions. First, he asked for troops to police the Southern border. Second, he mentioned using troops as a force to end rioting connected to protests over systemic racism.
This act, however, has had an impact before President Trump. In 2009, after Michael McLendon killed 10 people at Fort Rucker, a number of troops were used in a police function. While President Obama did not authorize their use, nor did the governor of Alabama, those who were part of this action received “administrative” punishment for violating the Posse Comitatus Act.
President George W. Bush asked Congress to amend the law so that the military could be used to assist in natural disaster relief after Hurricane Katrina.
Why was it passed?
As troop numbers increased beyond any point in American history during the years of the Civil War, the nation had to grapple with the question of a large standing Army and how it perceived such an Army as a potential threat to democracy. While this had been an ongoing concern throughout the early years of the American republic, an exchange between Abraham Lincoln and Joseph Hooker shows its connection to the Civil War years. Upon appointing Joseph Hooker to command the Army of the Potomac, Lincoln wrote, “I have heard, in such way as to believe it, of your recently saying that both the Army and the Government needed a Dictator. Of course it was not for this, but in spite of it, that I have given you the command. Only those generals who gain successes, can set up dictatorships. What I now ask of you is military success, and I will risk the dictatorship.”
After the Civil War, the government moved quickly to disband the military to a size that would not be a threat to the civilian government. Yet, there was still the need to occupy the Southern states who held a unique position of both being a defeated “nation” and, as some would argue, still legally part of the United States. This, therefore, created a conundrum in the American constitution. Could federal troops be used to infringe upon states’ self-government?
This became the crux upon which many Reconstruction arguments would be made. Throughout the Reconstruction years, the North argued that the federal troops should remain in place to uphold the laws of the constitution, while the South argued that the continued presence of troops, especially after Southern states were readmitted into the Union, was a threat to democracy and the Constitution. As these states were readmitted into the Union, and as they were “redeemed” through the election of Democratic governments, which were less likely to accept continued federal presence, the fight over