PERF ECD STUDY - September 2009

Comparing Safety Outcomes in Police Use-of-Force Cases for Law Enforcement Agencies that have Deployed Conducted Energy Devices and a Matched Comparison Group that have not: A Quasi-Experimental Evaluation

• “Overall, the study showed that use of CEDs is associated with a 70-percent reduction in the chances of an officer being injured compared to agencies that do not use CEDs."
• "...the odds of a suspect being injured are reduced by more than 40 percent in CED agencies compared to non-CED agencies.”
• “All in all, we found consistently strong effects for CEDs in increasing the safety of officers and suspects”
• “Not only are CED sites associated with greater levels of safety compared to a matched group of non-CED sites, but also within CED agencies, in some cases the actual use of a CED by an officer is associated with a higher level of safety compared to incidents in which officers used other types of less lethal weapons, such as batons.”

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