A lawyer assisting the dozens of Occupy Des Moines demonstrators arrested earlier this month on charges of trespassing on State Capitol grounds says Iowa State Patrol officers showed a “level of brutality … I hadn’t seen in the over 20 years I’d been here.” Sally Frank, a professor at the Drake University Law School, said the officers that arrested the demonstrators used pepper spray, cuffed the demonstrators too tightly and dragged them away. The tight cuffing has left some of the demonstrators with numbness, she said, and one of the people arrested had his arm injured by the officers. “The Des Moines Police Department doesn’t do that and knows how to deal with protesters and do it professionally and appropriately,” Frank said