Are there statistics that show taser use decreased the number of bullets fired/hitting civilians by the police? I find conflicting results. https://nij.ojp.gov/topics/articles/police-use-force-impact-... (2011):

A new study suggests that less-lethal weapons decrease rates of officer and offender injuries

https://www.cnbc.com/2018/01/18/theres-no-evidence-tasers-re... (2018):

“We find no substitutions between Tasers and firearms,” Professor Jeffrey Grogger told CNBC. The study reviewed 36,112 use-of-force incidents in Chicago