The following cases stand for the proposition that “a warrantless arrest, unsupported by probable cause, violates the Fourth Amendment.”
Eighth Circuit
Bell v. Neukirch, 19-1713, 2020 WL 6304897, at *9 (8th Cir. Oct. 28, 2020) (stating that “it was clearly established at the time of Bell’s warrantless arrest that no reasonable officer in the position of Officers Munyan and Neukirch could have believed that probable cause existed to arrest Bell based on the plainly exculpatory evidence available to them”).
Thurairajah v. City of Ft. Smith, Arkansas, 925 F.3d 979, 984 (8th Cir. 2019).
Bechman v. Magill, 745 F.3d 331, 334 (8th Cir. 2014).
Stoner v. Watlingten, 735 F.3d 799, 804 (8th Cir. 2013).
Small v. McCrystal, 708 F.3d 997, 1003 (8th Cir. 2013).
El-Ghazzawy v. Berthiaume, 708 F. Supp. 2d 874, 885 (D. Minn. 2010), aff’d, 636 F.3d 452 (8th Cir. 2011).
Gaines v. Brewer, 132 Fed. Appx. 67, 69 (8th Cir. 2005) (unpublished).
Womack v. City of Bellefontaine Neighbors, 193 F.3d 1028, 1031 (8th Cir. 1999).
Lambert v. City of Dumas, 187 F.3d 931, 935 n.6 (8th Cir. 1999) (“The relevant inquiry is whether the arresting officers had probable cause to arrest Lambert at the time of the arrest, not whether the officers’ decision to arrest Lambert can be justified by information learned after the arrest.”).