[3] The group began by organizing driving patrols through the Sonoran Desert of Arizona to look for migrants who might be in need of water or medical attention.
[4] No More Deaths volunteers staff migrant centers in northern Mexico to provide aid to undocumented immigrants who have recently been deported or repatriated by the Border Patrol.
The group claims that it often encounters migrants who have been denied food, water, and medical attention, have been separated from family members, and have suffered physical, emotional, or sexual abuse.
[6] On July 9, 2005, two No More Deaths volunteers, Daniel Strauss and Shanti Sellz, were arrested by a Border Patrol agent while transporting three immigrants from the Arivaca "Ark" to Tucson for medical attention.
[8] No More Deaths responded with a campaign called "Humanitarian Aid is Never a Crime" to raise awareness about the case and persuade Judge Raner C. Collins to overrule Velasco and drop all charges.
[11] On September 3, 2010, the littering conviction of Daniel Millis, for leaving water bottles in 2008 for immigrants crossing through a desert wildlife preserve was overturned by a 2-1 appeals court decision.
"[17][18] His arrest came only hours after No More Deaths published a report[19] criticizing actions of Border Patrol and accusing them of destroying humanitarian supplies in the desert.