Criticism Follows Release of Burlingame DriverTimes Redwood City BureauREDWOOD CITY, June 30.—Apathy of jiui-es in manslaughter and negligent homicide trials arising out of* traffic deaths, was scored today by Deputy District Attorney Dematteis05 Cl eve Hov/er of Burlingame was* freed of a negligent homicide charge in connection with a fatal accident,Dematteis* motion for dismissal of the defendant was granted by Superior Judge Cotton after the as si slant prosecutor stated that no addition at evidence could be presented, that another trial would run into considerable expense for the county, and that it was quite probable a new jury would disagree, A jury recently acquit tod Hower on a charge of manslaughter ami disagr^wJ on the negligent homicide count. The charges grew out of the death nt Harold Grotty, San Jofg glass company manager, in a Bay share highway accident in San Mateo last Christmas eve.Under llie present, law it is difficult to obtain a jury conviction in felony cases arising out of automobile deaths, ntthough the ovi-l dcnce may point strongly to the: guilt of the accused, Dematteissatd.The stole hoard of equalization agent's $1000 bail was exonerated by the court.