DES MOINES, IA – A man from Des Moines was sentenced Tuesday (Today) to 12 1/2-years in prison for Conspiracy to Distribute Methamphetamine. The U-S Attorney’s Office for the Southern District of Iowa says in addition to his sentence, 56-year-old David Alan Callison must also serve a five-year term of supervised release after the prison term. There is no parole in the federal system.

In April 2019, Callison was the sole back seat passenger of a car stopped by law enforcement. In a bag next to Callison, law enforcement found over 600 grams of methamphetamine, more than $13,000, and a digital scale. The investigation revealed that Callison repeatedly obtained large quantities of methamphetamine for redistribution. Callison was on parole for a state of Iowa drug conviction when he committed this offense.

Last year, Callison’s co-defendants were sentenced. Angel Luis Toledo Castillo, age 37 of Des Moines, received a 162-month sentence, after he was found guilty by a jury in November 2019 of conspiracy to distribute methamphetamine. Demetrio Cortes Montano, age 46 of Des Moines, received a 139-month sentence for conspiracy to distribute methamphetamine. Gustavo Martinez, age 30 of Des Moines, received a 120-month sentence for conspiracy distribute methamphetamine.

United States Attorney Richard D. Westphal of the Southern District of Iowa made the announcement. The Des Moines Police Department investigated the case, assisted by the Mid-Iowa Narcotics Enforcement Task Force and the Iowa Division of Narcotics Enforcement. This case was prosecuted by the United States Attorney’s Office for the Southern District of Iowa.