What established probable cause in Adams v Williams?

In Adams v. Williams, the establishment of probable cause was primarily based on information provided by a known informant. The case highlighted the significance of reliable informants whose tips can lead to lawful stops and searches. In this particular instance, the officer acted on information received from a known informant about a suspect who was allegedly armed and engaging in suspicious behavior. The court determined that such information was sufficient to give the officer probable cause to stop and investigate further, ultimately leading to the discovery of a weapon. This case underscores the importance of considering the reliability of the source of information when establishing probable cause, illustrating that information from a credible informant can justify police action in a way that mere observations or suspicions alone may not.