To establish locus standi under section 14 of the High Court Act (Chapter 7:06), an applicant must demonstrate a real, direct and substantial interest in the subject matter that is not remote, hypothetical or academic. The mere holding of agricultural rights does not automatically confer standing to challenge a miner's compliance with environmental regulations in the absence of evidence of actual or threatened interference with the farmer's rights. Where regulatory authorities are statutorily empowered to enforce compliance with environmental impact assessment requirements, a third party seeking to challenge non-compliance must demonstrate how the alleged breach affects their legitimate interests before having standing to bring proceedings.