False. First official modern style police was in Boston in 1838. Slave patrols are from the 1700s. https://naacp.org/find-resources/history-explained/origins-modern-day-policing#:~:text=Theoriginsofmodernday,runawayslavestotheirowners. https://sites.uab.edu/humanrights/2021/12/08/the-history-of-policing-in-the-us-and-its-impact-on-americans-today/ https://nleomf.org/slave-patrols-an-early-form-of-american-policing/ This one talks about those nice guys in the north you reffered to (who came around after the slave patrols were already a thing) https://www.npr.org/2020/06/05/871083599/the-history-of-police-in-creating-social-order-in-the-u-s