Within just a few hours last Thursday, a 13-year-old immigrant from Everett was arrested on suspicion he had threatened another student, brought to the police station, fingerprinted, and then as his mother waited outside, picked up by federal immigration officials.

By the next day, the boy, whose parents have a pending asylum case, would be whisked to a detention facility 500 miles away.

The remarkably swift passage of the juvenile into the Trump administration’s deportation system, purportedly without the explicit cooperation of local police, underscores the reach and efficiency of the infrastructure that Immigration and Customs Enforcement has managed to build even in deep-blue Massachusetts.

The case also demonstrates how federal agents can, in some cases, work around Massachus

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