The First Circuit Court of Appeals confirmed that government border officers can continue to search electronic devices at the border without a search warrant or probable cause.
Although the state of the law regarding the extent of authority an immigration officer, “CBP officer” has to search electronic devices such as a cell phone or laptop is unclear…
In short, they can pretty much search whatever they want. You can certainly refuse any search but the officer may not admit you and/or the officer may also detain or…