In a major test of how to interpret the Fourth Amendment in the digital age, the Supreme Court on Tuesday will consider two cases about whether the police need warrants to search the cellphones of the people they arrest.

According to a New York Times article, the courts have long allowed warrantless searches in connection with arrests, saying they are justified by the need to protect police officers and to prevent the destruction of evidence. The Justice Department, in its Supreme Court briefs, said the old rule should apply to the new devices.

Others say there must be a different standard because of the sheer amount of data on and available through cellphones.