The industrial and commercial bureau shall make a decision within 10 days from the date of receiving the complaint and notify the complainant in writing. If the complaint materials meet the requirements and the infringement facts are confirmed to be accepted, 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 the alleged infringement of the exclusive right to use a registered trademark of others based on the obtained suspected evidence or report: (2) consulting and copying the relevant materials such as contracts, invoices and account books related to the infringement activities of the parties; (three) to conduct on-site inspection of the places where the parties are suspected of engaging in activities that infringe upon the exclusive right to use registered trademarks of others.