In DeBacker v. Brainard, Sheriff, 1969, the U.S Supreme Court reviewed a case involving an individual who was arrested for drunk driving and refused to take a breathalyzer test. The defendant argued that his refusal should not be used as evidence against him in court because it would violate his Fifth Amendment right against self-incrimination. However, the Supreme Court disagreed with this argument. They ruled that the Fifth Amendment does not protect individuals from being compelled to provide physical evidence like blood samples or breath tests since these do not involve testimonial communication or revealing any knowledge they might have about their guiltiness of crime committed.

In the dissenting opinion for DeBacker v. Brainard, it was argued that the majority's decision to uphold a Nebraska statute allowing warrantless arrests for minor traffic offenses violated Fourth Amendment protections against unreasonable searches and seizures. The dissent emphasized that such an interpretation of police powers could lead to abuses and potential harassment by law enforcement officers who might use this as a pretext to arrest individuals without probable cause on more serious charges. It also highlighted concerns about racial profiling and discrimination in policing practices, arguing that minority communities may be disproportionately affected by these types of laws. Furthermore, the dissent questioned whether there was any compelling public safety rationale for permitting warrantless arrests in cases involving non-dangerous traffic violations where issuing a citation would suffice.