Precautionary steps for all devices:
Do not attempt to manually go thru the device, as it could possibly modify time stamps crucial to your case.
If the password is known and the phone will power up, turn the phone off and leave it off.
If you do not know the password, call 1-877-40 VITAL to get information on how to handle the phone.
If the phone will power back up, turn the phone off and leave it off until you contact 1 877 40 VITAL
If the phone is powered down, leave it turned off.