(a) Purchase regulated property with serial numbers, personalized inscriptions or initials, or other identifying marks, which are or have been altered, obliterated, removed, or otherwise rendered illegible unless such removal is the result of obvious normal wear;

(b) Purchase regulated property from a person under the age of 18 years;

(c) Purchase regulated property from a person who is obviously under the influence of drugs or intoxicating liquor; or

(d) Knowingly purchase regulated property from a person who is not the owner of the regulated property or parent or guardian of the owner of the regulated property.

(e) Purchase any of the following items: