“” the murder clearance rate fell from above 60 percent in 2019 to just 52 percent in 2022.””
…
“Asher also points out that 2020 began an exodus of officers leaving law enforcement. “The majority of big cities had fewer officers in 2022 than they did in 2019,” Asher says. “If you have fewer officers, you have fewer resources to dedicate to solving crime, which means lower clearance rates. And we do have lots of research that shows that.””
https://www.vox.com/2023/12/23/24012514/police-crime-data-solve-rate-eddie-garcia-today-explained