The Supreme Court ruling on cell phone searches prevents law enforcement officers from seizing cell phones.

The correct response to the question is that law enforcement officers are not prevented from seizing cell phones; rather, the Supreme Court ruling specifically addresses the search of cell phones without a warrant.

In the landmark case of Riley v. California (2014), the Supreme Court held that the police must obtain a warrant before searching an individual's cell phone, acknowledging the vast amount of personal information stored on these devices and the privacy interests at stake. This ruling does not prohibit law enforcement from seizing cell phones as part of an investigation; it simply establishes that a separate warrant is needed to conduct a search of the cell phone's contents.

Thus, the understanding that the ruling restricts searches but not seizures is critical to accurately interpreting the legal boundaries for law enforcement concerning cell phones.