(CNN) A federal judge has blocked the Trump administration's plan to expand a procedure to speed up deportations for some undocumented immigrants.

The policy shift, announced in July, casts a wider net over undocumented immigrants subject to the fast-track deportation procedure known as "expedited removal," which allows immigration authorities to remove an individual without a hearing before an immigration judge. In doing so, the administration would be provided greater latitude in quickly deporting undocumented immigrants.

"Government actors who make policy decisions in their official capacities cannot succumb to whims or passions while rulemaking; instead, they must carefully evaluate all of the relevant facts and circumstances and take into account the feedback they have to solicit and receive from interested members of the public," Jackson wrote in her ruling.

"Put in common parlance, if a policy decision that an agency makes is of sufficient consequence that it qualifies as an agency rule, then arbitrariness in deciding the contours of that rule -- e.g., decision making by Ouija board or dart board, rock/paper/scissors, or even the Magic 8 Ball -- simply will not do," she added. Jackson halted the change while court proceedings continue.

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