Senior US immigration officials over the weekend instructed rank-and-file officers to “turn the creative knob up to 11” when it comes to enforcement, including by interviewing and potentially arresting people they called “collaterals”, according to internal agency emails viewed by the Guardian.

Officers were also urged to increase apprehensions and think up tactics to “push the envelope” one email said, with staff encouraged to come up with new ways of increasing arrests and suggesting them to superiors.

“If it involves handcuffs on wrists, it’s probably worth pursuing,” another message said. yellow tape surrounds a crime scene Family of suspect in Colorado fire attack taken into custody of US immigration Read more

The instructions not only mark a further harshening of attitude and language by the Trump administration in its efforts to fulfill election promises of “mass deportation” but also indicate another escalation in efforts, by being on the lookout for undocumented people whom officials may happen to encounter – here termed “collaterals” – while serving arrest warrants for others.

ICE operation calls for 5,000 federal agents and 21,000 National Guard troops to make deportation arrests