Witnesses - As enacted, establishes procedures for the use of certified facility dogs during witness testimony and other court proceedings; establishes standards for certified facility dogs. - Amends TCA Title 24; Title 36; Title 37 and Title 40.

SB 391 allows certified facility dogs to accompany witnesses - especially trauma victims - in court to reduce stress and improve testimony accuracy. It sets strict requirements: dogs must have 2+ years of training, vet health certificates, $500,000 insurance, and visible markings, while handlers must be certified in legal protocols. Courts must approve requests via motion, require handlers to stay visible to witnesses but out of jury view during testimony, and instruct juries not to view the dog as prejudicial. The law, effective April 11, 2025, applies to all Tennessee court proceedings involving witness testimony.