Marijuana has now been legal in Colorado for medicinal use for more than 15 years. Over this time, authorities in neighboring Nebraska (where the drug remains illegal) have become concerned about the potential spillover of marijuana into their state’s counties. In new research, Jared M. Ellison and Ryan E. Spohn find that Nebraska’s border counties, and to a lesser extent those along the I-80 highway corridor, have experienced an upward trend in marijuana-related arrests and jail admissions. In light of these findings, they write, both states and the federal government may need to rethink their marijuana laws and make decisions about penalties and potential legalization

Ellison, Jared M.

Spohn, Ryan E.

LSE Research Online

blogs.lse.ac.ukhttp://blogs.lse.ac.uk/usappblog/2015/12/30/colorados-legalization-of-medicinal-marijuana-is-linked-to-a-rise-in-marijuana-related-arrests-in-some-parts-of-nebraska/Colorado’s legalization of medicinal marijuana is linked to a risein marijuana-related arrests in some parts of Nebraska.Marijuana has now been legal in Colorado for medicinal use for more than 15 years. Over this time,authorities in neighboring Nebraska (where the drug remains illegal) have become concerned aboutthe potential spillover of marijuana into their state’s counties. In new research, Jared M. Ellison andRyan E. Spohn find that Nebraska’s border counties, and to a lesser extent those along the I-80highway corridor, have experienced an upward trend in marijuana-related arrests and jailadmissions. In light of these findings, they write, both states and the federal government may need torethink their marijuana laws and make decisions about penalties and potential legalization.In 2000, Colorado became one of the first states to legalize medical marijuana. It was not until 2008and 2009, however, that the number of medicinal users began to rapidly expand. Soon after thisexpansion, criminal justice officials across the state of Nebraska suggested that there had been aninflux of marijuana into their counties, and more specifically, in the counties along the Colorado-Nebraska border and those along Interstate 80 (i.e., a major transportation route running through thestate). In response to the purported increases, the Nebraska state legislature passed LegislativeResolution 520, which commissioned a special committee to discuss possible solutions to the issue(e.g., increased state law enforcement presence and/or state funding). In the interest of providing senators with anaccurate description of the problem, we compared the rates of marijuana-related possession arrests, sale arrests, jailadmissions, and associated costs of incarceration in two groups of so called “treatment counties”—the 7 countiesalong the Colorado border and the 11 counties along the I-80 corridor (see Figure 1)—to comparable rates in theremaining 75 counties in the state of Nebraska from 2000 through 2013.Figure 1 – Maps of Colorado and Nebraska with neighboring counties and I-80 corridorNotes: Figure courtesy of iStockphoto LP. Permission granted under the iStock contentlicense agreement. Highlighted Colorado counties (i.e., Boulder, Denver, and El Paso) wereidentified as the most common “source” of Colorado-born marijuana seizures in other states.A preliminary examination of raw counts suggested that border counties had experienced the most noticeable upwardtrend in marijuana-related arrests and jail admissions over the 14-year period (Figure 2). While there was also anotable increase in sale arrests in I-80 counties and an increase in possession arrests in control counties, thenumber of sale arrests and jail admissions actually fell in control counties. However, given that raw trends in arrestsand jail admissions are susceptible to population changes as well as law enforcement activity, we compared rates ofmarijuana-related criminal justice activity from 2000 to 2004 with respective rates from 2009 to 2013, after controllingfor state and local law enforcement activity.Figure 2 – Trends in Marijuana-related Possession, Sale, and Jail AdmissionsThe results of our regression analyses showed that while border counties had comparable rates of marijuana arrestsand jail admissions initially (i.e., 2000-2004), they were significantly higher than control counties from 2009 to 2013.The one exception to this trend was that border counties and those along the I-80 corridor had higher rates ofpossession arrests both before and after the influx of medical marijuana registrants in Colorado. Counties along the I-80 corridor had higher rates of possession arrests from 2009 to 2013, but we found no evidence to suggest that thesecounties experienced higher relative rates of sale arrests or jail admissions from 2009 to 2013. Moreover, despitehigher rates of marijuana-related arrests and jail admissions, a supplemental analysis of costs for incarcerationshowed that only I-80 counties had higher average costs during both time periods compared to control counties. Thissuggests that marijuana offenders are not detained long enough to make a fiscal impact on the rural jails that operatenear the border; I-80 county jails, on the other hand, have more bed space and greater monetary resources thanborder counties, which provides them with the ability to incarcerate marijuana offenders and keep them for longerperiods of time.With regard to whether the rates changed significantly, we found that only border counties experienced a significantand positive change in the rate of possession arrests, sale arrests, and jail admissions. In other words, Nebraskanborder counties were the only counties to experience a significant increase in the rate of marijuana-related criminaljustice activity after the expansion of medical marijuana in Colorado. In line with claims made by criminal justiceofficials in Nebraska then, it is at least plausible to suggest that the increasing availability of medical marijuana, orreductions in risk associated with its use in Colorado, have contributed to an increased prevalence of illegal marijuanain Nebraska.Most importantly, we found that these trends persist despite controls for population changes and levels of local andstate law enforcement. The results clearly indicated that the activity of the Nebraska State Patrol is perhaps the moreinfluential of the two law enforcement controls, as counties with higher proportions of arrests made by the state patroltypically had higher rates of marijuana-related arrests and jail admissions. The presence of local law enforcement,however, had very little to do with the rate of marijuana arrests, and only influenced the rate of marijuana-related jailadmissions from 2009 to 2013.Our results have considerable policy implications for states located near others that legalize marijuana, although itremains far too early to estimate the most recent changes that may result from recreational legalization. The obviousimplication is that states such as Nebraska, as well as the federal government, may need to ultimately rethink theirmarijuana laws, and make decisions regarding penalty enhancements, reductions, and/or forms of legalization. TheAttorneys General of Nebraska and Oklahoma, for example, have brought a joint lawsuit in federal court againstColorado (States of Nebraska and Oklahoma v. Colorado, 2014), alleging that under the US Constitution’sSupremacy Clause, Colorado’s legalization of marijuana is unconstitutional. Colorado’s Attorney General has sincefiled a counterclaim, joined by the Attorneys General of Washington and Oregon, contending that while marijuana isillegal under federal law, the Drug Enforcement Administration and the US Attorney’s office have decided to take ahands-off approach to the retail regulation of marijuana; thus, any lawsuit should be directed at the federalgovernment for their lack of enforcement rather than at the states whose citizens have voted to legalize the drug. Asof this writing, however, the US Supreme Court has yet to decide whether it will hear the case. Moreover, the Obamaadministration recently (December 16, 2015) asked the Court to avoid the lawsuit, and suggested that the Courtshould only step in when states themselves are at odds, rather than when third parties violate federal and state law inanother state.Figure 3 – Legalization of Marijuana in the United States (As of March, 2015)Notes: Figure courtesy of iStockphoto LP. Permission granted under the iStock contentlicense agreement.In any event, the legalization of marijuana—both for medicinal and recreational purposes—is sure to create a lastingdebate throughout the United States in the coming years. A recent public opinion poll shows that a majority ofAmericans now support legalization, and twenty-three states and the District of Columbia (D.C.) have existing orplanned medical marijuana programs as of March, 2015 (Figure 2). Moreover, four states—Alaska, Colorado,Washington, and Oregon—as well as Washington, D.C., have legalized recreational marijuana. While recentevidence suggests that these policy changes may have a number of economic benefits for these states (e.g., costsavings and state revenue), our analysis shows that the greater availability, public promotion, and cultural adaptationto these changes may have spillover effects on the illegal marijuana market across state lines. In the interest ofinforming the looming debate, then, researchers should continue to explore how and why varying degrees oflegalization in one state might impact the amount of illegal marijuana across the border.          This article is based on the paper, “Borders up in smoke: Marijuana enforcement in Nebraska after Colorado’sLegalization of Medicinal Marijuana” in Criminal Justice Policy Review. Featured image credit: Kent Kanouse (Flickr, CC-BY-NC-2.0)Please read our comments policy before commenting.            Note:  This article gives the views of the author, and not the position of USAPP – American Politics and Policy, nor theLondon School of Economics.Shortened URL for this post: http://bit.ly/1QYnAde_________________________________                          About the authors Jared M. Ellison – University of Nebraska OmahaJared M. Ellison is a doctoral candidate in the School of Criminology and Criminal Justice at theUniversity of Nebraska Omaha. His research interests include short-term incarceration, the criminalcourt system, and offender reentry. Jared has published in several scholarly journals, includingCriminal Justice and Behavior, The Prison Journal, Journal of Criminal Justice, and Trauma,Violence, and Abuse.Ryan E. Spohn – University of Nebraska OmahaRyan E. Spohn is director of the newly established Nebraska Center for Justice Research at theUniversity of Nebraska-Omaha, where he routinely performs statewide and local research andevaluation activities targeted at improving the performance of Nebraska’s juvenile justice, criminaljustice, and corrections activities. Dr. Spohn has published in numerous victimization, sociology, andcriminal justice scholarly journals, including the Violence Against Women, Criminal Justice Review,Social Forces, and Victims and Offenders.CC BY-NC 3.0 2015 LSE USAPP

Colorado’s legalization of medicinal marijuana is linked to a rise in marijuana-related arrests in some parts of Nebraska.

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