美国宪法十四修正案第一款
Section 1. All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside. No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.
State(州)包括州,县,市各级政府机关,包括警察局,公立学校。
deprive any person of life,liberty,or property。你赶一个房客,当然剥夺了他自由和财产权利。
without due process of law,就是必须经过适当的法律程序(due = proper)due process of law 不一定是法院,只要是州政府经过立法规定的法律程序就可以。
所以,你的问题肯定是没有,没有任何一个警察能够不经过一定法律程序驱赶房客,那是违宪的。
那么,你的问题的答案在于,美国哪个州在不违宪的前体系啊,制定了一个不经过法院的due process of law来驱赶房客。比如landlord tenant board等等的类似法院的行政机构。注意,due process of law在美国起码要有两个要点(1)通知(notice)(2)上诉(appeal)。
这个问题,你自己去研究好了。