Jackson v. Carin, No. 23-1034 (4th Cir. 2025)
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Angelo Jackson was identified as a suspect in a double murder in Montgomery County, Maryland, based on information from law enforcement officers. Detective Michael Carin used this information to obtain an arrest warrant for Jackson. After Jackson's arrest, Carin continued the investigation and found exculpatory evidence, including DNA and cellphone records, which led to the charges being dropped and Jackson's release after 65 days of detention.
Jackson filed a lawsuit against Carin, alleging that Carin's affidavit for the arrest warrant and his grand jury testimony were deliberately false or made with reckless disregard for the truth. Jackson claimed that if the commissioner and grand jury had been presented with truthful evidence, they would not have found probable cause for his arrest and indictment.
The United States District Court for the District of Maryland granted summary judgment in favor of Carin, finding that even with disputed material removed, the affidavit still provided probable cause for Jackson's arrest. The court also found that Carin was protected by qualified immunity on Jackson's federal claims and dismissed Jackson's gross negligence claim under Maryland law.
The United States Court of Appeals for the Fourth Circuit affirmed the district court's judgment. The court concluded that Carin did not violate legal standards in his investigation and was shielded by qualified immunity. The court also found that Carin's actions were reasonable and based on information he received from other officers, and that Jackson failed to meet the burden of proving that Carin's statements were false, made with reckless disregard for the truth, or material to the probable cause determination.
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