Embattled Chicago Mayor Rahm Emanuel on Wednesday unveiled a preliminary plan to cut police violence in the tension-racked city, equipping cops with Tasers to subdue suspects without shooting them.

“There’s a difference between whether someone can use a gun and when they should use a gun. And we as a city must train for that difference,” Emanuel said. “Force can be the last option, not the first choice.”

Emanuel said every patrol car would be equipped with a Taser following a series of high-profile shootings by cops and that the city would double the number available to officers to 1,400.

Interim Police Superintendent John Escalante said just 21 percent of Chicago officers are certified to use a Taser but more training would be given.

The mayor and police department have been heavily criticized since the city last month released video footage of a white officer shooting a black teenager 16 times in 2014.

Emanuel noted that on audio recordings of communications between dispatchers and officers on the scene, several cops are heard “frantically” asking for a Taser before Officer Jason Van Dyke shoots 17-year-old Laquan McDonald.

But no officers or vehicles on the scene were equipped with one.

Residents have staged protests and demanded Emanuel’s resignation, forcing President Obama’s former chief of staff to cut short a family vacation.