Officials in Chicago, reeling from a dramatic uptick in killings and under pressure from President Trump to contain it, outlined a series of high-tech solutions on Friday, including more predictive policing techniques.

The tools will be used in impoverished neighborhoods in the city’s south and west edges where a disproportionate amount of deadly violence occurs — and where the rise in the homicide rate has been most concentrated. The move fits a broader strategy of focusing efforts on the relatively small number of people who commit violent crime and the limited number of places where it erupts.

The steps announced Friday included:

  • An expansion of ShotSpotter sensors that pick up the sound of gunfire and alert police to its location.
  • Near-ubiquitous coverage of public areas by surveillance cameras.
  • The introduction of predictive policing software that identifies areas most likely to see gun violence.
  • Layering that analysis with another predictive program that identifies people most likely to commit —or be the victims of — gun violence.
  • A “war room”-like office, staffed with analysts who will translate that data for changes to deployments and long-term strategy.

The tools will allow the department to be “more proactive and focus on the right people in the right place and at the right time,” Superintendent Eddie Johnson said.

Related: Trump Offers to Send ‘the Feds’ into Chicago to Fix Violent Crime — but They’re Already There

He and Mayor Rahm Emanuel unveiled the moves in a press conference that was cut short after Johnson fell ill and appeared about to faint. Johnson went to a hospital for evaluation, officials said.

Image: Rahm Emanuel

Chicago Mayor Rahm Emanuel speaks at a news conference at a police station on Jan. 27.