On Thursday, 2/02/17, at approximately 5:00PM, officers of the Bakersfield Police Department responded to the 1400 block of 4th Street for a subject brandishing a shotgun. Officers arrived and detained Joseph Casillas (20) of Bakersfield, who was found to have a pistol-gripped shotgun concealed in his waistband. The investigation revealed Casillas had been involved in a verbal argument with other subjects on scene and brandished the shotgun during the argument. No shots were fired and Casillas was taken into custody without incident. Officers obtained a search warrant and located an additional firearm in a residence associated with Casillas. Casillas was arrested and booked for assault with a deadly weapon, gang participation, firearm violations, and criminal threats