Rosario Law and Legal Definition

Rosario material includes any statements of a witness who will testify at trial. Police forms that summarize a witness statement, a signed statement by a witness, and paperwork prepared by a testifying police officer are examples of Rosario materials. Rosario material must be given to the defense before the opening statements.

The prosecution is required to turn over all prior recorded statements of their witnesses. This includes police complaint forms, the officer's memo book, witness statements and many other various forms of police and district attorney paperwork.