Final answer:
The absence of probable cause during an arrest or search and seizure can render evidence inadmissible and violate an individual's Fourth Amendment rights.
Step-by-step explanation:
The absence of probable cause during an arrest or search and seizure can have multiple consequences. One major consequence is that the evidence obtained without probable cause can be deemed inadmissible in court under the exclusionary rule. This means that the evidence cannot be used to prove guilt or establish a criminal case against the individual.
Additionally, the absence of probable cause can also lead to violations of an individual's Fourth Amendment rights, which protect against unreasonable searches and seizures. If probable cause is lacking, the arrest or search and seizure may be deemed unconstitutional, potentially resulting in the suppression of evidence and the dismissal of charges.
Overall, the absence of probable cause can significantly impact the admissibility of evidence and the outcome of a criminal case.