The debate regarding saturation patrols versus checkpoints favors saturation patrols being more effective, both in terms of number of arrests and cost. The FBI compared saturation patrols vs. checkpoints in Ohio, Missouri, and Tennessee. The study showed that, “Overall, measured in arrests per hour, a dedicated saturation patrol is the most effective method of apprehending offenders.” Another survey found that "States with infrequent checkpoints claimed a lack of funding and police resources for not conducting more checkpoints, preferred saturation patrols over checkpoints because they were more 'productive,' and used large number of police officers at checkpoints."
# Greene, Jeffrey W., 2003. Battling DUI: A Comparative Analysis of Checkpoints and Saturation Patrols. FBI Law Enforcement Bulletin, 72: 1-6.
# ^ Fell, J.C., Ferguson, S.A., Williams, A.F., 2003. Why are sobriety checkpoints not widely adopted as an enforcement strategy in the United States? Accident Analysis and Prevention, 35: 897-902.