The applicant (MMS Mining Syndicate) held a certificate of registration for a mine claim. On 19 October 2015, the first respondent (Provincial Mining Director) made a decision to cancel the applicant's certificate of registration. The applicant challenged this decision on review, alleging that: (1) the cancellation was arbitrary and without lawful cause; (2) the first respondent erred by awarding a ruling to the second respondent in a dispute where she was not a party; and (3) the decision was irregular, corrupt in nature, and unreasonable. The first respondent filed an opposing affidavit deposed to by Malcolm Mazemo, who was the Provincial Mining Director for Midlands Province (not the decision maker who was being challenged). Mazemo stated the facts were true to the best of his knowledge. The applicant raised a preliminary objection that the opposing affidavit was defective as the deponent could not swear positively to the facts, particularly regarding allegations of corruption, as he was not the decision maker.