From the Wikipedia page 
The Gibraltar Archives were established in 1969 following Gibraltar's first constitution. The institution is responsible not only for the collection and preservation of public records, but for providing access to the records that may be released to the public and to academic researchers in those cases where records can be released.
Besides public records, historical records from the 18th, 19th and 20th centuries are also deposited in the Gibraltar Archives. Such records were donated for bodies and institutions that took part in any way in the administration of Gibraltar. Private individuals, groups and associations have also donated records to the Gibraltar Archives. An example is the Gibraltar branch of the Transport and General Workers' Union (TGWU, now Unite the Union), who did so in 2008.
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