Legal Question in Criminal Law in Texas

I'm not sure what you mean by "legal procedures". If you're in any danger of being prosecuted for anything, whether it's murder or some other charge like Tampering With Evidence, you need to retain a criminal defense attorney. If you're not in danger of being prosecuted, maybe I'm missing something obvious here, but I'm drawing a total blank on what legal procedures you'd be talking about, so perhaps you could elaborate on that a bit.