You could be compelled to disclose your computer password to the police

In Commonwealth v. Joseph J. Davis, 2017 Pa. Super. 376, the Pennsylvania Superior found that a criminal defendant accused of sharing child pornography from his encrypted computer could be legally compelled to disclose the password necessary to decrypt the computer drive to law enforcement officials. The defendant argued that his right against self-incrimination provided by the 5th Amendment to the U.S. Constitution prevented him from being compelled to disclose the password.  The court held that compelled disclosure of the password would not violate the defendant’s right against self-incrimination because disclosure would not be testimonial in nature because disclosure would add little or nothing to the sum total of the government’s information because the defendant had already implied the existence of the pornographic files on his computer and the prior investigation had already established that pornographic videos had been shared on the internet from the defendant’s computer.