Answer :
Final answer:
The decision point in OVI detection phase three is 'probable cause', meaning sufficient evidence is needed to suggest that a person is under the influence to lawfully arrest them.
Explanation:
The decision point in OVI detection phase three is probable cause. This is the legal standard required for an arrest or to issue a search warrant. It is a higher standard than reasonable suspicion, which may allow police to detain someone temporarily and conduct a limited investigation. The landmark case Terry v.
Ohio (1968) helps illustrate these concepts by establishing that reasonable suspicion is sufficient for a 'stop and frisk' but not for an arrest, which requires probable cause. In the context of OVI (operating a vehicle under the influence) detection, probable cause would entail having enough evidence to suggest that a person is under the influence and therefore, can be lawfully arrested.
