In accordance with Article 105 paragraph 1 point 2 c of the Banking Act, a bank shall be required to disclose information that is subject to the obligation of banking secrecy at the request of a court or a prosecutor’s office in connection with the performance of a request for legal assistance from a foreign state which, on the basis of a ratified international agreement binding on the Republic of Poland, has the right to request information that is subject to the obligation of banking secrecy. This possibility is given by some sector conventions (e.g. Council of Europe Convention on Laundering, Search, Seizure and Confiscation of the Proceeds from Crime and on the Financing of Terrorism, of 2005, the United Nations Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances of 1988 and the United Nations Convention against Corruption of 2003) and the Protocol of 2001 to the MLA 2000 Convention. The basis for obtaining these data is the prosecutor’s decision. In other cases, obtaining information subject to bank secrecy is possible on general principles laid down in Article 105 paragraph 1 point 2b and Article 106b paragraph 1 of the Banking Act. In accordance with Article 105 paragraph 1 point 2b of the Banking Act, a bank shall be required to disclose information that is subject to the obligation of banking secrecy at the request of a court or a prosecutor’s office in connection with legal proceedings under way in cases involving criminal or fiscal offences: - against a natural person where such a person is a party to an agreement with the bank, in the scope of information related to that natural person; - committed in connection with the activity of a legal person or organisational unit without legal personality, in the scope of information related to that legal person or organisation. In accordance with Article 106b paragraph 1 of the Banking Act, apart from cases specified in Art. 105, the prosecutor who conducts criminal or fiscal offence proceedings may request a bank, the bank staff or other persons involved in the performance of banking operations to disclose information that is subject to the obligation of banking secrecy solely under a decision issued at his/her request by the competent court. It is also possible to establish accounts of legal entities in the collective information about bank accounts.