(SACRAMENTO) — Stronger comprehensive background check (CBC) policies enacted 2014 in Washington and 2015 in Oregon require private gun sellers to conduct background checks before selling firearms.
But have these newly enacted laws resulted in more background checks for private-party sales – the major source of guns for persons who commit crimes and are prohibited from owning them?
A study by the UC Davis Violence Prevention Research Program (VPRP) published Nov. 27 in Injury Epidemiology assessed changes in rates of background checks in Washington and Oregon from January 1999 through December 2018. They tracked monthly counts from the Federal Bureau of Investigation’s National Instant Criminal Background Check System and compared them with synthetic controls created from 28 states that did not implement CBC policies during the study period.
The researchers found CBC policies were associated with an 18% increase in pre-firearm-sale checks in Oregon and a 4% increase in Washington state. They attribute the different rates between the two states to variation in the proportion of private party firearm sales, compliance with the new law among private gun sellers and the lack of mechanisms to measure enforcement of the laws.
“Washington’s increase in private-party checks after its CBS policy took effect suggests a gradual adaptation to the new law by private gun sellers,” said Alvaro Castillo-Carniglia, first author of the study who conducted the research as a VPRP scholar. “But firearm transactions coded as ‘private’ accounted for less than 5% of total background checks in the state, which is a very small proportion compared to national estimates.”
In states without CBC policies, approximately 57% of private party transfers occur without background checks. In states with CBC policies, these private party transfers without checks decrease to 26%.
To fully determine the effects of CBC policies, the authors say they need more data and to assess changes in rates over a longer period of time.
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Co-authors of the study, “Effect on background checks of newly-enacted comprehensive background check policies in Oregon and Washington: A synthetic control approach,” include Daniel W. Webster from the Center for Gun Policy and Research at Johns Hopkins Bloomberg School of Public Health and Garen Wintemute from the UC Davis Violence Prevention Research Program.
The research was supported by funding from the Joyce Foundation (grant 15-36377), The California Wellness Foundation (grant 2014-255) and the Heising Simons Foundation (grant 2016-219).
The UC Davis Violence Prevention Research Program (VPRP) is a multi-disciplinary program of research and policy development focused on the causes, consequences and prevention of violence. Studies assess firearm violence and the connections between violence, substance abuse and mental illness. VPRP is home to the University of California Firearm Violence Research Center, which launched in 2017 with a $5 million appropriation from the state of California to fund and conduct leading-edge research on firearm violence and its prevention.
The UC Davis Violence Prevention Research Program (VPRP) is a multi-disciplinary program of research and policy development focused on the causes, consequences and prevention of violence. Studies assess firearm violence, the social conditions that underlie violence, and the connections between violence, substance abuse and mental illness. VPRP is home to the University of California Firearm Violence Research Center, which launched in 2017 with a $5 million appropriation from the state of California to conduct leading-edge research on firearm violence and its prevention. For more information, visit //www.
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