Are the letters from the opposing party, open with consent, admissible evidences?

Are the letters from the opposing party, open with consent, admissible evidences?

Opposing party was my roommate. While he was away, he requested me to open all his letters to search for his government ID and credit card number. There are written consent and emails to proof. But as I opened all the mails, I discovered his numerous dirty secrets: bad checks, debts to banks and companies, poor credit scores, fraud of insurance companies, etc. Not until then, I realized that he lied to me saying he was the owner of a couple of banks. Can I submit these copies of letters as evidences that he has financial problems, which serve as the motive of the crime, and also perhaps, as character evidences?

Asked on May 18, 2014 under Criminal Law, Maryland

Answers:

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