In 2012, Washington State legalized the production, sale, and possession of marijuana through Initiative 502. Advocates of legalization argued that it would decrease the jail population and reduce the disproportionate incarceration of minorities, reasoning that the police would refocus their resources on other matters. In order to evaluate this assumption, we examined jail booking data using a set of interrupted time-series regression models. Our findings indicate that jail population trends differ among counties across time and with respect to impacts on minorities and women. With regard to ethnic and racial disproportionate impact, there appears to be little positive change.
BanksC. (2016). Criminal justice ethics: Theory and practice (4th ed.). SAGE.
5.
BernalJ. L.CumminsS.GasparriniA. (2017). Interrupted time series regression for the evaluation of public health interventions: A tutorial. International Journal of Epidemiology, 46(1), 348–355. https://doi.org/10.1093/ije/dyw098
GarlandB.HoganN.WodahlE.HassA.LambertE.StohrM. K. (2014). The issue of decarceration and its possible effects on inmates, staff, and communities. Punishment and Society, 16(4), 448–473.
KaebleD.CowhigM. (2018). Correctional populations in the United States, 2016. U.S. Department of Justice, Office of Justice Programs, Bureau of Justice Statistics. https://www.bjs.gov/index.cfm?ty=pbdetail&iid=6226
16.
LindenA. (2015). Conducting interrupted time-series analysis for single-and multiple-group comparisons. The Stata Journal, 15(2), 480–500. https://doi.org/10.1177/1536867X1501500208
17.
MakinD.WillitsD.WuG.DuBoisK.LuR.StohrM.KoslickiK.StantonD.HemmensC.SnyderJ.LovrichN. (2018). Marijuana legalization and crime clearance rates: Testing proponent assertions in Colorado and Washington State. Police Quarterly, 22(1), 31–55. https://doi.org/10.1177/10986111786255
ShepardE.BlackleyP. (2016). Medical marijuana and crime: Further evidence from the western states. Journal of Drug Issues, 46(2), 122–134. https://doi.org/10.1177/0022042615623983
33.
StemenW. (2017). Beyond the war: The evolving nature of the U.S. approach to drugs. Harvard Law and Policy Review, 11, 375–418.
34.
StohrM. K.FosterC. (2016). No tokes over the line: Marijuana decriminalization, medicalization and legalization as it affects decarceration. In MarionN. E.HillJ. B. (Eds.), Legalizing marijuana: A shift in policies across America (pp. 119–134). Carolina Academic Press.
35.
U.S. Census. (2017). United States government printing office, Washington, D.C.
36.
WagnerA. K.SoumeraiS. B.ZhangF.Ross-DegnanD. (2002). Segmented regression analysis of interrupted time series studies in medication use research. Journal of Clinical Pharmacy and Therapeutics, 27(4), 299–309.
