In Re: City of Baton Rouge, through the City Attorney, Ralph Tyson, applying for Writs of Certiorari, Mandamus, Prohibition, Mandamus and Stay Order, Parish of E. Baton Rouge.

Denied. This Court will not interfere with the orderly trial of a case to review a ruling of the trial judge on the admissibility of evidence except on a clear showing of unmistakable error and the probability of great injustice as a result.

concurs on the showing made in this application.

As to relator’s concern over the effect on other similar prosecutions, relator may obtain a pretrial ruling on the admissibility of the certificate and seek review if the ruling is adverse.