The Boston Police Department reported a major increase in the number of detainer requests it received from ICE in 2025.
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The Boston Police Department received 57 total detainer requests from ICE in 2025 and ignored all of them, according to a letter Commissioner Michael Cox sent to the city clerk earlier this month.
Detainer requests are used by ICE when the agency becomes aware of “removable aliens” that are being held by local law enforcement officials. ICE regularly lodges these requests with local police departments to notify them that a person in their custody is able to be deported. They ask that local police hold the person in question for extra time beyond when they would normally be released so that ICE officers can assume custody of them before they are released back into their communities…