PREVENTION OF CRUELTY TO ANIMALS ACT 1985 - SECT 29
29—Powers of inspectors
(1) Subject to this section, an inspector may—
(a) at any reasonable time, enter any premises that are—
(i) licensed under this Act; or
(ii) being used by the holder of a licence under this Act for the purposes of an activity for which the holder is required to be licensed under this Act; or
(iii) being used by the holder of an accreditation under the Primary Produce (Food Safety Schemes) Act 2004 for or in connection with meat processing within the meaning of that Act;
(b) at any reasonable time, enter any premises or vehicle that is being used for holding or confining animals that have been herded or collected together for sale, transport or any other commercial purposes;
(c) where the inspector reasonably suspects that an offence has been committed in any premises or vehicle (including any premises or vehicle referred to in paragraph (a) or (b)), enter or break into the premises or stop and detain the vehicle and open or break into any part of the premises or vehicle, or anything in or on the premises or vehicle.
(2) An inspector may, while in or on any premises or vehicle pursuant to this section—
(a) ask questions of any person in the premises or vehicle; and
(b) take copies of, or extracts from, documents or records in the premises or vehicle; and
(c) examine any animal in the premises or vehicle, and where the inspector suspects on reasonable grounds that the animal is suffering unnecessary pain, seize and remove the animal for treatment and care; and
(d) inspect any object in the premises or vehicle; and
(e) where the inspector suspects on reasonable grounds that an offence against this Act has been committed, seize and remove from the premises or vehicle any animal or object that may, in the opinion of the inspector, afford evidence of the offence; and
(f) take photographs, films or video, audio or other recordings; and
(g) require the holder of any licence or permit under this Act to produce that licence or permit for inspection.
(3) An inspector must not exercise the powers conferred by subsection (1)(c) except on the authority of a warrant issued by a justice, unless the inspector believes, on reasonable grounds, that an animal in or on the premises or vehicle is suffering, or is in danger of suffering, unnecessary pain, and that urgent action is required.
(4) A justice must not issue a warrant under subsection (3) unless satisfied, on information given on oath—
(a) that there are reasonable grounds to suspect that an offence against this Act has been committed; and
(b) that a warrant is reasonably required in the circumstances.
(4a) The costs and expenses reasonably incurred by a person or the Crown in seizing, treating or caring for an animal pursuant to subsection (2)(c) may be recovered as a debt from the owner of the animal.
(5) Where an inspector is of the opinion that the condition of an animal is such that an exercise of powers under this subsection is warranted, the inspector may by notice in writing—
(a) direct the owner of the animal to provide it with such food, water, shelter, rest or treatment as the inspector thinks necessary;
(b) require the owner to ensure that the animal is not worked or used for any purpose specified in the notice for such period as is specified in the notice;
(c) require the owner to ensure that the animal is exercised in accordance with the stipulations of the notice.
(6) In the exercise of powers under this Act, an inspector may be accompanied by such persons as may be necessary or desirable in the circumstances.
(7) A person must not hinder or obstruct an inspector, or a person accompanying an inspector, in the exercise by the inspector or the person accompanying the inspector, of the powers conferred by this Act.
Maximum penalty: $1 250.
(8) Subject to subsection (9), a person to whom a question is put under this section must not refuse or fail to answer that question to the best of the knowledge, information or belief of that person.
Maximum penalty: $1 250.
(9) A person is not required to answer a question if the answer would tend towards self-incrimination.
(10) A person given a direction, or of whom a requirement is made, pursuant to this section must not refuse or fail to comply with the direction or requirement.
Maximum penalty: $1 250.
http://www.austlii.edu.au/au/legis/sa/consol_act/poctaa1985360/s29.html