1 the opportunities of private individuals and corporations to exercise an influence on the matters. Section 20 — Duty of the authorities to produce and disseminate information (1) The authorities shall promote the openness of their activities and, where necessary for this purpose, produce guides, statistics and other publications, as well as information materials on their services and practices, as well as on the social conditions and developments in their field of competence. When the extent of this duty is being assessed, due consideration shall be given to the opportunities to obtain information on the activity of the authority by means of access to its documents or the general compilations of statistics in Finland. (2) The authorities shall publicise their activities and services, as well as the rights and obligations of private individuals and corporations in matters falling within their field of competence. (3) The authorities shall see to it that the documents or the pertinent indexes which are essential to the general public’s access to information are available where necessary in libraries or public data networks, or otherwise easily accessible to the members of the public. Section 21 — Production of sets of data on request (1) When requested to do so, an authority may compile and deliver a set of data formed from signs contained in one or more computerised information management systems and maintained for various purposes, if such delivery is not contrary to the provisions on document secrecy and the protection of personal data owing to the search criteria used, the volume or quality of the data or the intended use of the set of data. (2) Where permitted by the authorities concerned and subject to the provisions in paragraph (1), the set of data may be compiled also from information management systems maintained by different authorities. Chapter 6 — Secrecy obligations Section 22 — Document secrecy (1) An official document shall be secret if it has been so provided in this Act or another Act, or if it has been declared secret by an authority by virtue of an Act, or if it contains information covered by the duty of non-disclosure, as provided in an Act. (2) A secret official document, a copy or a printout thereof shall not be shown or given to a third party or made available to a third party by means of a technical interface or otherwise. Section 23 — Non-disclosure and prohibition of use (1) A person in the service of an authority and an elected official shall not disclose the secret content of a document, nor information which would be secret if contained in the document, nor any other information obtained in the service of the authority, where covered by a duty of non-disclosure provided in an Act. The provision on non-disclosure shall apply also after the service or the performance of the task on behalf of the authority has ceased. (2) The provision in paragraph (1) applies also where trainees or other temporary personnel, persons commissioned by the authority or persons in the service of such persons have acquired secret information by virtue of an Act or a permission based on an Act, unless otherwise provided in the Act or laid down in the permission. A party, his/her representative or counsel shall not disclose to third parties secret information obtained by virtue of party status and concerning other persons than the party himself. (3) A person referred to above in paragraph (1) or (2) shall not use secret information for personal benefit or the benefit of another, nor for the detriment of another. However, a party, his/her representative and counsel may use information 8