Linux Hint published a tutorial about how to get data from an encrypted drive.

Getting data from an encrypted drive

If someone accessed your hard drive physically then the best way to save your private files is by Encryption. Encryption converts the file into randomly looking and meaningless data that cannot be accessed without entering the password. Encrypting your drives is a good thing but using weak, repeated, or guessable passwords for them will make them easy to crack. Almost every encryption type can be cracked, depending upon password length and complexity. Some Encryption software are explained in this article.

Getting data from an encrypted drive – Linux Hint