Does the death penalty provide an added measure of protection for the police in the performance of their duties? \n other words, is policing more hazard-ous in abolitionist and retentionist jurisdictions where the executionrate of convicted murderers is low?

Capital punishment

Does the death penalty provide an added measure of protection for the police in the performance of their duties? \n other words, is policing more hazard-ous in abolitionist and retentionist jurisdictions where the executionrate of convicted murderers is low?
consider how variation in execution rates for murder in retentionist states may influence the rate of police killings, and (2) introduce the necessary control variables in his analysis to properly isolate the possible deterrent effect of the death penalty on the rate of police killings.