Administrative law - Small Claims Tribunal - Certiorari - Declaration and injunction - Hearing of small claim - Order that "trader" refund purchase price of defective appliance to "consumer" - In determining claims principles of general law to be applied - Natural justice - Whether bias or failure to give a hearing - Tribunal not adverting to proper legal basis for allowing claim - Failure to make order conditional on return of goods - Whether want of jurisdiction rendering decision a nullity - Small Claims Tribunal Act 1973 (No.8486) s17, s18(2).

Administrative law - Small Claims Tribunal - Certiorari - Whether a denial of natural justice - Trader given notice of claim and attending at hearing to answer that claim - Tribunal hearing extending beyond the claim of which trader had notice - Claim amended at hearing without notice to trader - Party not notified of all issues and no opportunity to prepare case - Tribunal's order quashed - Small Claims Tribunals Act 1973 (No. 8486), s2, s9, s17, s22, s23, s28, s30, s31, s34.

Administrative law - Small Claims Tribunal - Certiorari - Jurisdiction with regard to a "small claim"- Claim by ultimate purchaser from retailer of goods against manufacturer of goods to enforce manufacturer's warranty - Whether collateral contract between manufacturer and ultimate purchaser - Claim must arise out of contract for the supply of goods or provision of services between a "consumer" and a "trader" - Whether relation between manufacturer and ultimate purchaser that of "consumer" and "trader" - Whether purchaser's claim a "small claim" - Small Claims Tribunal Act 1973 (No 8486) s2(1).