A Boulder-based company is playing a key role in the Trump administration’s growing immigration surveillance network.

BI Inc. , a subsidiary of the private prison giant Geo Group, manufactures the GPS-enabled ankle monitors now being required for thousands of immigrants under new directives from U.S. Immigration and Customs Enforcement.

The devices, assembled in Boulder, are part of ICE’s Alternatives to Detention program , which monitors nearly 183,000 migrants awaiting immigration proceedings. Over 25,000 active participants in the program wear ankle monitors as of July.

However, under a June memo obtained by The Washington Post , ICE is now directing agents to place ankle monitors on nearly all participants “whenever possible,” except for pregnant women, who may be issued wris

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