Legal analysis: It belongs to the supervision scope of the People's Bank of China. POS is a multifunctional terminal. It can be installed in special merchants and acceptance outlets of credit cards, and connected with computers to realize automatic transfer of electronic funds. It has the functions of supporting consumption, pre-authorization, balance inquiry and transfer. It is safe, fast and reliable to use. It is difficult to obtain basic business information for bulk transactions, and the introduction of POS system is mainly to solve the blind spot of retail information management. An important part of chain branch management information system. Domestic Internet innovative third-party payment enterprises have integrated the electronic signature application with the POS card swiping system to realize the green and environmentally-friendly paperless POS receipt service. The application of electronic signature can not only effectively save time, money and paper, but also help to improve service efficiency and customer satisfaction, simplify business processes and improve work efficiency.

Legal basis: China People's Bank Law of the People's Republic of China.

Article 9 the State Council shall establish a coordination mechanism for financial supervision and management, and the specific measures shall be formulated by the State Council.

Article 31 The People's Bank of China shall monitor the operation of financial markets according to law, implement macro-control on financial markets, and promote the coordinated development of financial markets.

Article 32 The People's Bank of China has the right to inspect and supervise the following acts of financial institutions and other units and individuals:

(a) the implementation of the relevant provisions of the deposit reserve management;

(2) Acts related to the special loans of the People's Bank of China;

(three) the implementation of the relevant provisions on the administration of RMB;

(four) the implementation of the provisions on the management of the interbank lending market and the interbank bond market;

(five) the implementation of the relevant provisions on foreign exchange management;

(six) the implementation of the relevant provisions of the gold management behavior;

(7) Acting for the People's Bank of China to manage the national treasury;

(eight) the implementation of the relevant provisions of liquidation management;

(nine) the implementation of the relevant provisions of anti-money laundering behavior.

The special loan of the People's Bank of China mentioned in the preceding paragraph refers to the loan granted by the People's Bank of China to a special-purpose financial institution decided by the State Council.