This is an online Iowa legal update course for law enforcement officers. The lesson addresses recent court decisions providing guidance to Iowa police officers regarding the following questions:

• When is a suspect in custody for purposes of Miranda warnings?

• When and under what circumstances may law enforcement officers reinitiate questioning of a suspect after the suspect has invoked the right to remain silent?

• When will an officer have reasonable suspicion of criminal activity to justify extending a traffic stop beyond its original mission?

• Does the plain view doctrine allow an officer to examine glass vials lying on a couch to determine whether they contain illegal substances?