Spy planes provide modest help to Baltimore crime fight over three months, researchers find

In the first half of a six-month experiment, Baltimore's "wide-area surveillance" using video cameras flying above city streets to aid in crime investigations has led to only one arrest. The city's police commissioner doubts the city will agree to pay for the surveillance once private funding for the pilot project runs out, but he says he'll know more after the six-month experiment. The experiment is aimed at Baltimore's high rates of gun violence. Besides its effectiveness, critics worry about its privacy implications and that it targets mostly Black neighborhoods.

An audio alert service called ShotSpotter uses audio sensors and algorithms to detect gunfire and report it to the Cleveland police. The technology is helping to bridge the gap in unreported gunfire in the city.

Cobb County, Georgia installed new license plate surveillance technology, loaned to them by the Atlanta-based company, Flock Safety. After installation, the test area saw a dramatic decrease in crime, to which Flock took credit for but experts say the connection could be due to a number of things. Furthermore, while surveillance technology has been correlated with decreased crime, communities have called into question issues of personal privacy versus public safety.

Data-driven policing, higher rates of gun seizures, increased hiring and a focus on improving community trust have positively impacted Chicago police. For second year in a row, the city saw a drop in murder rates, shootings, robberies, burglaries and carjackings.

Data suggests that when an officer is wearing a body camera the likelihood that they will shoot a person decreases by as much as 60 percent. Axon Enterprises, which originally made a fortune from selling taser guns to police departments, started investing in body cameras back in 2006. Now, they are the largest manufacturer “holding contracts with more than half the major police departments in the country.” The company believes this technology will bridge the gap between lethal force and safety.

Using advanced data, cameras, and innovative mapping, Chicago is hoping to finally solve crime in the city. Hidden sensors like ShotSpotter and crime forecasting software HunchLab are being used to turn massive amounts of data into usable information for law enforcement officers, but concerns about privacy and surveillance are prevalent.

What if a computer program could tell you who was at risk for shooting someone or being shot themselves? This is now a reality for Chicago Police Department. By piloting the use of this technology, and assembly a cohort of cops, social workers, ministers and moms to visit the names of those the computer names, the city has seen a decrease in violence over the last year.

The National Integrated Ballistic Information Network, or NIBIN, uses ballistics imaging to help law enforcement agencies connect separate shootings perpetrated using the same firearm. In Danville, Virginia, the system has produced roughly 400 hits since it was instituted in 2018.

Two decades ago, California became the first state to create a system to track and seize guns from people no longer legally permitted to possess a gun. Thousands of guns have been seized. But the database of gun owners now barred from gun possession because of a violent offense, a serious mental illness, or a restraining order has ballooned and many people slip through the cracks of a system "mired in chronic shortcomings." Local police often fail to support the system and the state's investigation bureau is understaffed.

St. Louis was one of the first cities to adopt ShotSpotter technology, which uses a network of microphones, software, and human monitors to detect and analyze gunshot sounds. The detection system summoned police more than 15,000 times last year. Only 1% of those calls in a 10-year span yielded enough evidence to result in a police report, and only 13 arrests resulted. There is no evidence that the system actually reduced gun violence. Advocates say the system, which costs St. Louis taxpayers and a nonprofit group more than $1 million per year, yields other useful intelligence and should be maintained.