Texas Health and Safety Code - HEALTH & SAFETY § 481.183. Evidentiary Rules Relating to Drug Paraphernalia

(1) statements by an owner or person in control of the object concerning its use;

(2) the existence of any residue of a controlled substance on the object;

(3) direct or circumstantial evidence of the intent of an owner or other person in control of the object to deliver it to a person whom the person knows or should reasonably know intends to use the object to facilitate a violation of this chapter;

(4) oral or written instructions provided with the object concerning its use;

(5) descriptive material accompanying the object that explains or depicts its use;

(6) the manner in which the object is displayed for sale;

(7) whether the owner or person in control of the object is a supplier of similar or related items to the community, such as a licensed distributor or dealer of tobacco products;

(8) direct or circumstantial evidence of the ratio of sales of the object to the total sales of the business enterprise;

(9) the existence and scope of uses for the object in the community;

(10) the physical design characteristics of the item; and

(11) expert testimony concerning the item's use.