A legislative provision that deprives a person of property rights without providing sufficient reason for the deprivation, without affording courts any discretion to consider the circumstances of individual cases, and in a manner disproportionate to its objective constitutes arbitrary deprivation of property in violation of section 25(1) of the Constitution. The right to restitution based on unjustified enrichment constitutes property for purposes of section 25(1). Where a provision effects extensive deprivation of property rights, there must be persuasive reasons for it, and less restrictive means of achieving the legislative purpose must be considered. Section 89(5)(c) of the NCA, which mandates either cancellation or forfeiture to the state of all rights of unregistered credit providers to recover money or goods transferred under unlawful credit agreements, is an arbitrary deprivation of property that cannot be justified under section 36(1), as it uses disproportionate means (complete denial of restitution) when less restrictive alternatives exist (such as denial of interest, administrative fines, or applying common law enrichment principles with consideration of turpitude).