Tex. Code Crim. Proc. art. 18.09

When the property which the officer is directed to search for and seize is found he shall take possession of the same and carry it before the magistrate. He shall also arrest any person whom he is directed to arrest by the warrant and immediately take such person before the magistrate. For purposes of this chapter, "seizure," in the context of property, means the restraint of property, whether by physical force or by a display of an officer's authority, and includes the collection of property or the act of taking possession of property.