Official Secrets Act, 1963

What is this act about?

This law, the Official Secrets Act, 1963, is about protecting official information and preventing its unauthorised disclosure. It aims to safeguard the security and preservation of the State by controlling access to and communication of sensitive government data.

Who it applies to: Holders of a public office, meaning those remunerated by the Central Fund or Oireachtas, or appointed to government commissions/committees; Individuals or entities who have contracts with a Minister or State authority, or are employed by such parties.

At a glance

Country: Ireland
Area of law: Tax law
Articles: 18
Source: irishstatutebook.ie
Text retrieved: 2026-06-17
Explanation updated: 2026-07-07

What does this act regulate?

The disclosure and handling of "official information," which includes secret codes, documents, and data held by public office holders.
The communication of confidential information related to contracts with government bodies.
The retention and disposal of official documents and items containing official information.
Offences related to official dies, seals, stamps, and the forgery of official documents.

Who does this act apply to?

Holders of a public office, meaning those remunerated by the Central Fund or Oireachtas, or appointed to government commissions/committees.
Individuals or entities who have contracts with a Minister or State authority, or are employed by such parties.

What are the key points?

You cannot communicate official information unless duly authorised, or if it's your duty in the interest of the State.
You must take reasonable care to prevent unlawful communication of official or confidential contract information.
You cannot retain official documents or items containing official information if you have no right or duty to do so.
It is an offence to use, possess, counterfeit, or sell official dies, seals, or stamps without lawful authority, or to forge official documents.

Tax law

Health (Homes For Incapacitated Persons) Act, 1964

Planning and Development (Amendment) Act 2025

Finance (Miscellaneous Provisions) Act, 1935

Finance (Local Property Tax) (Amendment) Act 2015

Finance Act, 1952

Customs and Excise (Miscellaneous Provisions) Act, 1988

Disclosure of Certain Information For Taxation and Other Purposes Act, 1996

Finance Act, 1924

Tax law

Legal text

Contents (18)

Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
Section 10
Section 11
Section 12
Section 13
Section 14
Section 15
Section 16
Section 17
Section 18

Official Secrets Act, 1963 Skip to content Disclaimer Feedback Helpdesk Gaeilge Léim go dtí an t-ábhar Séanadh Aiseolas Deasc chabhrach English Gaeilge English Produced by the Office of the Attorney General Táirgthe ag Oifig an Ard-Aighne Home Legislation Acts of the Oireachtas Statutory Instruments Pre-1922 Legislation Constitution External Resources Bills (Houses of the Oireachtas) Iris Oifigiúil / Official Gazette Revised Acts (LRC) Classified List of Legislation (LRC) Translations (acts.ie) Translations (Houses of the Oireachtas) Government Publications for Sale EU Law (EUR-Lex) FAQ Disclaimer Feedback Helpdesk Search Baile Reachtaíocht Achtanna an Oireachtais Ionstraimí Reachtúla Reachtaíocht Réamh-1922 Bunreacht Acmhainní Seachtracha Billí (Tithe an Oireachtais) Iris Oifigiúil Achtanna Athbhreithnithe (CAD) (An Coimisiún um Athchóiriú an Dlí) Liosta Rangaithe Reachtaíochta Aistriúcháin (achtanna.ie) Aistriúcháin (Tithe an Oireachtais) Foilseacháin Rialtais ar Díol Dlí AE (EUR-Lex) CCanna (Ceisteanna Coitianta) Séanadh Aiseolas Deasc chabhrach Cuardach TitleTeideal Year(s) or rangeBliain nó blianta nó raon TypeCineál All Legislation Acts Statutory Instruments Advanced SearchCuardach Casta HomeBaile ActsAchtanna 1963 Official Secrets Act, 1963 Official Secrets Act, 1963 Permanent Page URL View by SectionAmharc de réir Ailt View Full ActAmharc ar an Acht Iomlán Bill History Stair Bille Commencement, Amendments, SIs made under the Act Tosach Feidhme, Leasuithe, IRí arna ndéanamh faoin Acht Revised Act Acht Athbh… Print Full ActPriontáil an tAcht Iomlán Number 1 of 1963.

OFFICIAL SECRETS ACT, 1963.

ARRANGEMENT OF SECTIONS

PART I

Preliminary Section

Section 1

Short title.

Section 2

Interpretation.

Section 3

Repeals.

PART II

Official Information

Section 4

Disclosure of official information.

Section 5

Disclosure of confidential information in official contracts.

Section 6

Retention of documents and articles.

Section 7

Offences relating to official dies, seals and stamps.

Section 8

Forgery, etc., of official documents.

PART III

Communication of information to the prejudice of the safety or preservation of the State

Section 9

Acts contrary to safety or preservation of State.

Section 10

Communication with foreign agents or members of unlawful organisations.

Section 11

Harbouring offenders and failure to report offences.

Section 12

Proceedings in camera.

PART IV

Legal proceedings and supplementary provisions

Section 13

Offences.

Section 14

Restriction on prosecution.

Section 15

Arrest without warrant.

Section 16

Search warrants.

Section 17

Obtaining information as to suspect offences.

Section 18

Power to require the production of telegrams.

Acts Referred to Official Secrets Acts, 1911 1911, c. 28 Official Secrets Acts, 1920 1920, c. 75 Offences Against the State Act, 1939 1939, No. 13 Police (Property) Act, 1897 1897, c. 30 Telegraph Act, 1869 1869, c. 73 Wireless Telegraphy Act, 1926 1926, No. 45 Number 1 of 1963.

OFFICIAL SECRETS ACT, 1963.

AN ACT TO PROVIDE FOR THE SAFEGUARDING OF OFFICIAL INFORMATION. [5th February, 1963.] BE IT ENACTED BY THE OIREACHTAS AS FOLLOWS:—

PART I

Preliminary Short title.

1.—This Act may be cited as the Official Secrets Act, 1963.

Interpretation.

2.—(1) In this Act— “document” includes part of a document; “Minister” means a member of the Government; “model” includes design, pattern or specimen; “official document” includes a passport, official pass, permit, document of identity, certificate, licence or other similar document, whether or not completed or issued for use, and also includes an endorsement thereon or addition thereto; “official information” means any secret official code word or password, and any sketch, plan, model, article, note, document or information which is secret or confidential or is expressed to be either and which is or has been in the possession, custody or control of a holder of a public office, or to which he has or had access, by virtue of his office, and includes information recorded by film or magnetic tape or by any other recording medium; “public office” means an office or employment which is wholly remunerated out of the Central Fund or out of moneys provided by the Oireachtas, or an appointment to, or employment under, any commission, committee or tribunal set up by the Government or a Minister for the purposes of any inquiry, but does not include membership of either House of the Oireachtas. “sketch” includes a photograph or other mode of representing any place or thing; “State authority” means the Attorney General, the Comptroller and Auditor General, the Revenue Commissioners, the Commissioners of Public Works in Ireland or the Irish Land Commission.

(2)In this Act— expressions referring to communicating or receiving include any communicating or receiving, whether in whole or in part and whether the sketch, plan, model, article, note, document or information itself or the substance, effect or description thereof only be communicated or received; expressions referring to obtaining or retaining any sketch, plan, model, article, note or document include the copying or causing to be copied of the whole or any part of any sketch, plan, model, article, note or document; and expressions referring to the communication of any sketch, plan, model, article, note or document include the transfer or transmission thereof.

(3)A certificate given by a Minister under his seal that any official code word or password or any sketch, plan, model, article, note, document or information specified or indicated in the certificate is secret or confidential shall be conclusive evidence of the fact so certified.

Repeals.

3.—The Official Secrets Acts, 1911 and 1920, are hereby repealed.

PART II

Official Information Disclosure of official information.

4.—(1) A person shall not communicate any official information to any other person unless he is duly authorised to do so or does so in the course of and in accordance with his duties as the holder of a public office or when it is his duty in the interest of the State to communicate it.

(2)A person to whom subsection (1) applies shall take reasonable care to avoid any unlawful communication of such information.

(3)A person shall not obtain official information where he is aware or has reasonable grounds for believing that the communication of such information to him would be a contravention of subsection (1).

(4)In this section “duly authorised” means authorised by a Minister or State authority or by some person authorised in that behalf by a Minister or State authority.

Disclosure of confidential information in official contracts.

5.—(1) A person who is or has been— (a) a party to a contract with a Minister or State authority or with any person on behalf of a Minister or State authority, or (b) employed by such party, shall not communicate to any third party any information relating to the contract and expressed therein to be confidential.

(2)A person to whom subsection (1) applies shall take reasonable care to avoid any unlawful communication of such information.

(3)It shall be a good defence to a prosecution for a contravention of this section to prove that the communication was authorised in writing by the Minister or State authority or by the party contracting on behalf of the Minister or State authority.

Retention of documents and articles.

6.—(1) A person shall not retain any official document or anything which constitutes or contains official information when he has no right to retain it or when not required by his duty as the holder of a public office to retain it.

(2)A person shall comply with all directions issued by a Minister or the Secretary of a Department or any person authorised by a Minister under seal as to the return or disposal of any official document or anything which constitutes or contains official information and which is in his possession or under his control and is specified or indicated in such directions.

(3)The Taoiseach may give directions as to the return or disposal of any original documents specified or indicated in such directions which constitute or contain official information and which are in the possession or under the control of any person who formerly held office as a Minister or Parliamentary Secretary and any such person shall comply with all such directions.

(4)Subsections (1) and (2) shall not apply to a person who formerly held an office to which subsection (3) applies.

Offences relating to official dies, seals and stamps.

7.—(1) A person shall not— (a) use or have in his possession or under his control, without lawful authority or excuse, any official die, seal or stamp or any die, seal or stamp so nearly resembling it as to be calculated to deceive, or (b) counterfeit any official die, seal or stamp, or (c) use or have in his possession or under his control, without lawful authority or excuse, any such counterfeit die, seal or stamp, or (d) manufacture or sell or have in his possession for sale, without lawful authority or excuse, any official die, seal or stamp.

(2)In this section “official die, seal or stamp” means a die, seal or stamp of or belonging to, or used, made or provided by a Minister or State authority or any diplomatic or consular agent or other authority appointed by or acting under the authority of the Government.

Forgery, etc., of official documents.

8.—A person shall not— (a) forge or, without lawful authority or excuse, alter or tamper with any official document, or (b) use or have in his possession or under his control, without lawful authority or excuse, any forged, altered or irregular official document.

PART III

Communication of information to the prejudice of the safety or preservation of the State Acts contrary to safety or preservation of State.

9.—(1) A person shall not, in any manner prejudicial to the safety or preservation of the State— (a) obtain, record, communicate to any other person or publish, or (b) have in his possession or under his control any document containing, or other record whatsoever of, information relating to— (i) the number, description, armament, equipment, disposition, movement or condition of any of the Defence Forces or of any of the vessels or aircraft belonging to the State, (ii) any operations or projected operations of any of the Defence Forces or of the Garda Síochána or of any of the vessels or aircraft belonging to the State, (iii) any measures for the defence or fortification of any place on behalf of the State, (iv) munitions of war, or (v) any other matter whatsoever information as to which would or might be prejudicial to the safety or preservation of the State.

(2)Where a person is charged with a contravention of this section it shall be a good defence to prove that the act in respect of which he is charged was authorised by a Minister or by some person authorised in that behalf by a Minister or was done in the course of and in accordance with his duties as the holder of a public office.

Communication with foreign agents or members of unlawful organisations.

10.—(1) Where a person is charged with a contravention of section 9, the fact that he has (whether within or outside the State) been in communication with or attempted to communicate with a foreign agent or with a member of an unlawful organisation shall be evidence that the act in respect of which he is charged has been done in a manner prejudicial to the safety or preservation of the State.

(2)A person shall, unless he proves the contrary, be deemed to have been in communication with a foreign agent or a member of an unlawful organisation if he has (whether within or outside the State) visited the address of a foreign agent or a member of an unlawful organisation or consorted or associated with such agent or member, or if (whether within or outside the State) the name or address of or any other information regarding a foreign agent or a member of an unlawful organisation has been found in his possession or has been supplied by him to any other person or has been obtained by him from any other person.

(3)Any address (whether within or outside the State) reasonably suspected of being an address used for the receipt of communications intended for a foreign agent or a member of an unlawful organisation, or any address at which such a person resides, or to which he resorts for the purpose of giving or receiving communications, or at which he carries on any business, shall be deemed to be the address of a foreign agent or a member of an unlawful organisation and communications addressed to that address to be communications with a foreign agent or a member of an unlawful organisation.

(4)In this section— “foreign agent” includes any person who is or has been or is reasonably suspected of being or having been employed by a foreign power either directly or indirectly for the purpose of committing an act (whether within or outside the State) prejudicial to the safety or preservation of the State, or who has or is reasonably suspected of having (whether within or outside the State) committed or attempted to commit any such act; “member of an unlawful organisation” means any person who is or has been or is reasonably suspected of being or having been a member of an unlawful organisation within the meaning and for the purpose of the Offences Against the State Act, 1939 .

Harbouring offenders and failure to report offences.

11.—(1) A person shall not knowingly harbour any person whom he knows or has reasonable grounds for supposing to have contravened or to be about to contravene section 9.

(2)A person who becomes aware that there has been or is about to be a contravention of section 9 shall forthwith disclose to a member of the Garda Síochána or of the Defence Forces any information in relation thereto which it is in his power to give.

Proceedings in camera.

12.—If in the course of proceedings, including proceedings on appeal, for an offence under section 9 or for an offence under Part II committed in a manner prejudicial to the safety or preservation of the State, application is made by the prosecution, on the ground that the publication of any evidence or statement to be given or made during any part of the hearing would be prejudicial to the safety or preservation of the State, that that part of the hearing should be in camera, the court shall make an order to that effect, but the verdict and sentence (if any) shall be announced in public.

PART IV

Legal proceedings and supplementary provisions Offences.

13.—(1) A person who contravenes or attempts to contravene any provision of this Act shall, without prejudice to any other enactment, be guilty of an offence under this Act.

(2)A person shall be triable summarily for any offence under this Act and on conviction shall be liable to a fine not exceeding one hundred pounds or to imprisonment for a term not exceeding six months or to both.

(3)A person shall be triable on indictment for any offence under section 9 or for any offence under Part II committed in a manner prejudicial to the safety or preservation of the State, and on conviction shall be liable to imprisonment for a term not exceeding two years or to penal servitude for a term not exceeding seven years.

Restriction on prosecution.

14.—(1) Proceedings for any offence under this Act shall not be instituted except by or with the consent of the Attorney General.

(2)Before such consent is obtained a person charged with an offence under section 9 may be arrested, or a warrant for his arrest may be issued and executed, and he may be remanded in custody or on bail, but not in any case to a date later than eight days after he has been first remanded, and no further proceedings shall be taken until such consent is obtained.

Arrest without warrant.

15.—A person who is found contravening section 9 or who is reasonably suspected of having, or having attempted to, or being about to, contravene that section may be apprehended and detained in the same manner as a person who is found committing a felony.

Search warrants.

16.—(1) On his being satisfied that reasonable grounds exist for suspecting that there has been or is about to be a contravention of section 9 a justice of the District Court may issue a warrant to any member of the Garda Síochána to search any premises, place, vessel or aircraft.

(2)Where an officer of the Garda Síochána not below the rank of chief superintendent has reasonable grounds for believing that in the interest of the State immediate action is necessary, he may issue a search warrant having the same effect as a search warrant issued by a justice of the District Court.

(3)A search warrant issued under this section shall be expressed and shall operate to authorise a member of the Garda Síochána (not below the rank of inspector) named in the warrant together with any other persons named in the warrant and any other members of the Garda Síochána to enter, within one week from the date of the warrant and if necessary by force, any premises, place, vessel or aircraft named in the warrant and search the same and every person found therein and seize any document or thing found therein or on such person which such member reasonably believes to be evidence of or to relate, directly or indirectly, to a contravention or intended contravention of section 9.

(4)A member of the Garda Síochána acting under the authority of a search warrant issued under this section may— (a) demand the name and address of any person found in the premises, place, vessel or aircraft named in the warrant, and (b) arrest without warrant any such person who refuses to give his name and address, or gives a false name or a false address.

(5)Any document seized under this section may be removed and retained for so long as the Minister for Justice thinks proper, and any other thing so seized may be removed and retained for a period of one month from the date of its seizure or, if proceedings are commenced within such period for an offence under this Act, until the conclusion of the proceedings, and thereafter the provisions of the Police (Property) Act, 1897 , shall apply to the thing so seized in the same manner as that Act applies to property which has come into the possession of the Garda Síochána in the circumstances mentioned in that Act.

(6)Every person who obstructs a member of the Garda Síochána or other person acting under the authority of a search warrant issued under this section shall be guilty of an offence.

Obtaining information as to suspected offences.

17.—(1) Where an officer of the Garda Síochána not below the rank of chief superintendent has reasonable grounds for suspecting that an offence under section 9 has been committed and for believing that any person is able to furnish information as to the offence or suspected offence, he may apply to the Minister for Justice for permission to exercise the powers conferred by this subsection and, if such permission is granted, he may authorise a member of the Garda Síochána not below the rank of inspector to require the person believed to be able to furnish information to give any information in his power relating to the offence or suspected offence and if a person required in pursuance of such an authorisation to give information fails to comply with the requirement or knowingly gives false information he shall be guilty of an offence.

(2)Where any such officer has reasonable grounds for believing that in the interest of the State immediate action is necessary, he may exercise the powers conferred by subsection (1) without applying for or being granted the permission of the Minister for Justice, but if he does so shall forthwith report the circumstances to the Minister.

Power to require the production of telegrams.

18.—(1) Where the Minister for Justice is of opinion that such a course is expedient in the interest of the State, he may, by warrant under his hand, require any person who owns or controls any telegraphic cable or wire, or any apparatus for wireless telegraphy, used for the sending or receipt of telegrams to or from any place out of the State, to produce to him, or to any person named in the warrant, the originals and transcripts, either of all telegrams, or of telegrams of any specified class or description, or of telegrams sent from or addressed to any specified person or place, sent or received to or from any place out of the State by means of any such cable, wire or apparatus, and all other papers relating to any such telegram as aforesaid, and that person shall comply with the requirement.

(2)In this section “telegram” has the same meaning as in the Telegraph Act, 1869, and “wireless telegraphy” has the same meaning as in the Wireless Telegraphy Act, 1926.

Privacy Statement Accessibility European Legislation Identifier (PDF) Open Data License Ráiteas Príobháideachais Inrochtaineacht Aitheantóir Eorpach Reachtaíochta (ELI) Ceadúnas Sonraí Oscailte Liosta Fianán © Government of Ireland. Oireachtas Copyright Material is reproduced with the permission of the Houses of the Oireachtas © Rialtas na hÉireann. Atáirgtear ábhar faoi Chóipcheart le cead ó Thithe an Oireachtais

AI explanation based on the official legal text. Indicative, not a substitute for legal advice.