Final answer:
The Black Panthers attracted law enforcement attention by carrying loaded weapons in public, standing for self-defense and challenging oppressive systems, which led to increased police confrontations.
Step-by-step explanation:
The Black Panthers most attracted attention from law enforcement by carrying loaded weapons in public. The Black Panther Party, founded in 1966 by Bobby Seale and Huey Newton, was known for its militant stance and for its members openly bearing arms in public demonstrations. This practice, which was meant to symbolize the Panthers' dedication to self-defense and the right to bear arms as stipulated by the Second Amendment, was a direct challenge to law enforcement agencies and alarmed them, leading to increased surveillance and encounters with police.
Their armed patrols in African American neighborhoods, as a stand against police brutality, were particularly provocative and resulted in numerous clashes with the police. These actions, combined with their revolutionary ideology and the aggressive posturing by some of their members, were considered a physical manifestation of their opposition to oppressive systems, reinforcing the police and Federal Bureau of Investigation's view of the organization as subversive.