“While the governor may have the power to suspend some state laws and regulations to address this medical emergency, she cannot suspend the Constitution,” Steven Brown, Rhode Island ACLU executive director, said in a statement. “Under the Fourth Amendment, having a New York state license plate simply does not … constitute ‘probable cause’ to allow police to stop a car and interrogate the driver — no matter how laudable the goal of the stop may be.”
Article source: https://www.huffpost.com/entry/rhode-island-new-yorkers-quarantine-out-or-state_n_5e7fc775c5b6256a7a2be373