A person commits robbery in the first degree when, in the course of committing a theft, the person does any of the following:
1. Causes serious injury to another person or to a law enforcement officer.
2. Uses or exhibits a dangerous weapon.
3. Commits the offense against a person who is sixty-five years of age or older or a disabled person as defined in section 216B.1.
4. Commits the offense against a person in a correctional institution or a hospital for mental illness or a residential facility as defined in section 225C.1.
Punishment
Robbery in the first degree is a class B felony.
