HSC § 12351

Any explosives which are illegally manufactured, sold, given away, delivered, stored, used, possessed, or transported shall be subject to immediate seizure by any chief, issuing authority, or peace officer authorized to act under Section 12020. When a permit issued pursuant to this part has expired and is not immediately renewed, any explosives in the possession of the permittee shall be subject to immediate seizure by any chief, issuing authority, or peace officer authorized to act under Section 12020, unless first destroyed by the permittee in accordance with Section 12087.