Nolo's Plain-English Law Dictionary
Need Professional Help? Talk to a Lawyer
Enter Your Zip Code to Connect with a Lawyer Serving Your Area
Enter Your Zip Code to Connect with a Lawyer Serving Your Area
- Authenticate
- To offer testimony that tells the judge what an item of evidence is and its connection to the case. The purpose of authentication is usually to establish that the evidence can be admitted for purposes of making a decision in the case.


