A crowd of 100 urged the Board of Supervisors on Tuesday to adopt an ordinance that would bar U.S. Immigration and Customs Enforcement from using county property or resources without a judicial warrant. The pleas came as supervisors prepare to introduce a policy on the issue next week and as a 45-day ICE surge has begun to sweep through California. Speakers stressed that a policy alone would not offer the same legal protections as an ordinance. A community library specialist for Marin, Hector Garcia, said he was recently certified to provide free legal services. “It would be impossible for me to fulfill this job with the presence of ICE,” he said. Tearing up a campaign mailer for Supervisor Eric Lucan, who is running for state assembly, he added, “We continue to see headlines about the agency’s abuses all over the country, and this board refuses to act.” Mary Morgan, a member of Indivisible West Marin, emphasized her shock that Marin hasn’t adopted the ordinance, which other counties have. Amy Whalen, a physician from Inverness Park, described the psychological and physical toll of immigration enforcement, including increased risk of autoimmune disease, heart attacks, and cancer. Supervisor Brian Colbert, visibly moved, told the crowd that he stood with them. At the meeting’s end, the crowd sang several rounds of “We Shall Overcome” as supervisors departed the chambers.