ATDs usually take at least one of three forms. The first is electronic monitoring devices whereby migrants have to wear a tracking device like an ankle bracelet. The second is assigning caseworkers to periodically check up on the migrants. The third is monetary incentives, such as bonds. Many ATD programs mix these three. [Immigration and Customs Enforcement] runs the ATD program because they are responsible for apprehending, removing, and detaining immigrants inside of the United States. Detention costs about $170 per day for long stays and about $30 for short stays. The proposed tent cities to house migrant children would have cost about $775 per person per night. As far as I can tell, about 100 percent of them comply with court orders as they are in government detention and therefore have no choice. The tradeoff for this extra effectiveness are the various costs of detention.
Rather than crime increasing, nine out of 10 of the communities actually became considerably more safe, both in terms of their levels of violent and property crime. This included places like Southfield, Michigan, a community just outside of Detroit, where violent crime dropped by 77.1 percent. Decatur, Georgia, a community outside Atlanta, experienced a 62.2 percent decline in violent crime.