CONTRIBUTED PHOTO Marshall County Sheriff Steve Hoffman, left, is pictured with Marshalltown Police Department’s Paul Heitman Thursday at the local Central Iowa Residential Services Inc. offices. The MCSO claimed the “Battle of the Badges” trophy shown for donating the most blood units. They outpaced second place finisher Marshalltown Fire Department and third place finisher MPD. The event was sponsored by the American Red Cross. “Thirty-seven units of blood were donated by the three departments, Hoffman said. “This will help save 111 lives.”