Final answer:
The police stopping Rita and searching her car trunk and personal luggage without apparent reason may constitute an unlawful search and seizure, as it may violate the Fourth Amendment's protection against unreasonable searches without probable cause or other legal exceptions.
Step-by-step explanation:
The scenario described raises concerns related to unlawful search and seizure. According to the Fourth Amendment, individuals have the right to be secure in their persons, houses, papers, and effects against unreasonable searches and seizures, and this right cannot be violated without probable cause. A warrant, supported by oath or affirmation, should particularly describe the place to be searched and the persons or things to be seized. In the case of police stopping Rita without apparent reason and searching her trunk and luggage, it may constitute an unlawful search if there is no probable cause or any of the other legally recognized exceptions to the warrant requirement, such as consent, exigent circumstances, plain view of illegal items, or a reasonable suspicion of criminal activity.