According to the provisions of the Trademark Law, the administrative department for industry and commerce has the right to investigate and deal with violations of the exclusive right to use a registered trademark according to law; Suspected of committing a crime, it shall be promptly transferred to judicial organs for legal treatment. 2. The administrative department for industry and commerce at or above the county level may exercise the following functions and powers when investigating and dealing with acts suspected of infringing upon the exclusive right to use a registered trademark of others, based on the obtained evidence or reports of suspected illegal acts: 1. 2. Consult and copy the contracts, invoices, account books and other relevant materials related to the infringement activities of the parties. 3. On-site inspection of places where the parties are suspected of engaging in activities infringing on the exclusive right to use registered trademarks of others. 4. Check the articles related to infringement activities. 5. Articles that have evidence to prove infringement of the exclusive right to use registered trademarks of others may be sealed up or detained.