What has the u. s. department of justice told federal prosecutors to do regarding enforcing the controlled substances act in colorado and other jurisdictions that have legalized recreational marijuana?

They Take a hands-off approach to enforcing the Act in those jurisdictions

hands-off approach refers to the act of taking interventions toward a certain occurrence. The justice department could never obtain enough ground to conduct an arrest for marijuana possession in the states that have legalized recreational marijuana, and they will gradually start to treat that product as common commodity