(98)Competent authorities should be conferred with sufficient powers to supervise the issuance, offer to the public and admission to trading of crypto-assets, including asset-referenced tokens or e-money tokens, as well as to supervise crypto-asset service providers. Those powers should include the power to suspend or prohibit an offer to the public or an admission to trading of crypto-assets or the provision of a crypto-asset service, and to investigate infringements of the rules on market abuse. Issuers of crypto-assets other than asset-referenced tokens or e-money tokens should not be subject to supervision under this Regulation when the issuer is not an offeror or a person seeking admission to trading.