Final answer:
According to the Illinois Compiled Statutes, Joanna has committed theft by using threats to obtain control over property owned by Alex.
Step-by-step explanation:
Joanna's Actions and Theft
According to the Illinois Compiled Statutes, Joanna has committed theft by obtaining control over Alex's property through the use of threats. This is considered a criminal offense. In Illinois, theft is defined as knowingly obtaining or exerting unauthorized control over property with the intent to permanently deprive the owner of the property.
Examples of Theft
An example of theft in this situation would be Joanna threatening Alex to give her control over his car by telling him she will harm his family if he doesn't comply. In this case, Joanna would have obtained control over the car through threats and with the intent to permanently deprive Alex of it.