Boman made a second unsuccessful attempt to be elected to the Board of Police Commissioners in 2021. He ran on a reformist platform advocating more limits on surveillance, use of force, and more accountability by abusive police officers. He was endorsed by the Detroit Metro Times. His opponent, Willie Bell, received support from incumbent Mayor Mike Duggan, and Detroit City officials aggressively removed many of Boman's campaign signs from the lawns of his supporters.