If you are facing criminal charges, police officers and investigators may believe that they can find evidence on your cellphone. An example could be if you have been accused of selling drugs. They may be looking for evidence in the form of text messages that you sent or received with other parties who are allegedly involved.
The police can search your cellphone if you give them your consent to read your messages. They can also get a search warrant, which would allow them to search the device even if you do not approve it.
But there is another aspect to this, known as the third-party doctrine, which is important to understand. It may mean that the police can get information even without searching your phone itself.
Who else has access to that information?
If you voluntarily share certain types of information with other parties, then the third-party doctrine comes into effect. The police may not even need a search warrant. They can just talk to those third parties and get the information they want. They do not need your consent or approval to do so.
One example of this would be if you sent those messages using a social media app, like Facebook Messenger. You may not give your consent for the police to search your phone, but Facebook also has a log of your messages, so they can get it from the company.
Another example would be if you shared your location data with your cellphone provider. If the police want to see if you were in a location at a time when a known drug deal took place, they may be able to get your data from the cellphone provider, even if you do not unlock your device.
Your defense options
In other words, there are many ways for the police to get the evidence that they need, and it is important to understand how this process works. You also need to know about your legal defense options if you are facing serious charges.