Big brother is always watching and they do indeed store all your texts/phone calls ect. In databases." the age of increasing encryption, courts have been asked to order suspects to give up their fingerprints, face scans and passwords to unlock phones that could lead to make-or-break evidence in a case."
Only use Encrypted Devices, never use fingerprints or face scans on your devices!
As far as the password goes they are overstepping once again. How exactly can they Force you to disclose the password? Water boarding or some other kind of torture?
Depends on whats on that phone it may be best to just say no, wonder how long they could keep you locked up if you didn't comply?