The Supreme Court is set to hear arguments over whether police can search a suspect's cellphone without a warrant.  

Legal expert Royal Oakes says police believe cell phones are no different than cars or wallets, which can be searched without a warrant once a suspect is in custody.

"A cell phone everybody seems to realize is different. It really provides an incredibly detailed window into your life: personal information, medical information, tracking where you went. And that might not be justified by the warrant at hand," he said. 

Oakes says privacy advocates will say the government should not have the right to see information that could include location tracking, medical information and personal photos.  

Today the justices will hear two cases dealing with police searches of cellphones that helped get convictions against suspects in California and Massachusetts.