After the van caught up, two officers in camouflage tactical gear with “POLICE” patches across their chests approached Bassi. She turned to face them with her hands up. “I haven’t done anything at all,” she repeated, according to video by a witness.

The agents held Bassi’s arms behind her back and escorted her to the van. She was ordered to sit cross-legged on the floor of the vehicle — its middle seats removed — with her hands on her helmet and her eyes down, she said. They began to drive through downtown.

A pair of agents in the front and two more in the back were quiet, Bassi recalled.

“They never said who they were,” Bassi said. “I didn’t know if I was going to be seen again. I didn’t know what was going on. But I could tell that I was being arrested or detained or something.”