Dunlap Traffic Lawyer, Iowa, page 5

... In this case, the court must decide whether traffic regulations and enforcement mechanisms contained in Iowa Code chapter 321 and other code provisions were intended by the legislature to prohibit a municipality from establishing an automatic traffic enforcement system ...

... Knowing that an Estherville ordinance prohibits U-turns anywhere on Central Avenue, the officers believed the driver had committed a traffic violation and stopped the car. When the officers interacted with the driver, Donna Louwrens, they suspected she was intoxicated. ...

... Iowa Code § 321J.9. However, withdrawal of a specimen of blood, breath, or urine for chemical testing is permitted over the individual's objection pursuant to a search warrant when a traffic accident has resulted in death or injury reasonably likely to cause death, and there are ...