Evidence - As introduced, prohibits a court from excluding evidence against a criminal defendant unless the evidence was obtained by deliberate, reckless, or grossly negligent conduct or recurring or systemic negligence that violated the Fourth Amendment to the United States Constitution and refusal to suppress the evidence would contradict a clearly established holding of the United States supreme court; establishes an immediate interlocutory appeal to the Tennessee supreme court when a court grants a motion to suppress evidence. - Amends TCA Title 40.

SB 1677 changes Tennessee's rules for excluding evidence in criminal cases. It limits exclusion to situations where evidence was obtained through deliberate, reckless, or grossly negligent conduct violating constitutional rights, and where refusing to exclude it would contradict a clear U.S. Supreme Court ruling. The bill also creates an immediate appeal process for prosecutors when a judge suppresses evidence, requiring the Tennessee Supreme Court to expedite such cases. This directly affects criminal defendants (who may lose evidence challenges) and prosecutors (who gain faster appeals). The law aligns Tennessee's exclusionary rule strictly with federal standards, preventing state courts from creating stricter rules.