`Des Moines police this morning used a striking instrument and pepper spray on a woman they later learned was pregnant in an effort to stop her from eating what they believed was marijuana.
Barbara Brown, 20, of Des Moines, was taken to Broadlawns Medical Center to be treated for what police believed was marijuana consumption.
Police said they were trying to preserve evidence, but Brown managed to chew and swallow all of it.
She was charged with public consumption. The charge refers to the beer she allegedly was drinking, not the marijuana police believe she had eaten.’