Orson has probably committed the tort of conversion unless he can show that "Harrison does not really own the car."
Conversion is an intentional tort comprising of taking with the goal of practicing over the property a proprietorship conflicting with the genuine proprietor's privilege of possession". In the United Kingdom, it is a tort of strict liability. Its counterparts in criminal law incorporate robbery or burglary and criminal change. In those wards that remember it, criminal transformation is a lesser wrongdoing than burglary/theft.
