A Lucerne Valley man was arrested in Yucca Valley early Friday morning after he was found with a concealed knife during a traffic stop. About 1 a.m. Friday, a deputy stopped a Chevy Trailblazer on Old Woman Springs Road near Paxton Avenue for not having rear license plates. The deputy found that the two passengers were in possession of methamphetamine. In addition, Carlos Gonzalez, 42, was found to be in possession of a concealed knife. Carlos Gonzalez was arrested for investigation of being in possession of a concealed dirk or dagger, booked at the Morongo Basin Jail, with his bail set at $25,000.