Britain systematically destroyed documents in colonies that were about to gain independence, declassified Foreign Office files reveal. ‘Operation Legacy’ saw sensitive documents secretly burnt or dumped to cover up traces of British activities.

The latest National Archives publication made from a collection of 8,800 colonial-era files held by the Foreign Office for decades revealed deliberate document elimination by British authorities in former colonies.

The secret program dubbed ‘Operation Legacy’ was in force throughout the 1950s and 1960s, in at least 23 countries and territories under British rule that eventually gained independence after WWII. Among others these countries included: Belize, British Guiana, Jamaica, Kenya, Malaysia and Singapore, Northern Rhodesia (today Zambia and Zimbabwe), Tanzania, and Uganda.

In a telegram from the UK Colonial Office dispatched to British embassies on May 3, 1961, colonial secretary Iain Macleod instructed diplomats to withhold official documents from newly elected independent governments in those countries, and presented general guidance on what to do.

British diplomats were briefed on how exactly they were supposed to get rid of documents that “might embarrass members of the police, military forces, public servants (such as police agents or informers)” or “might compromise sources of intelligence”, or could be put to ‘wrong’ use by incoming national authorities.

‘Operation Legacy’ also called for the destruction or removal of “all papers which are likely to be interpreted, either reasonably or by malice, as indicating racial prejudice or bias”.

The newly declassified files revealed that the Royal Navy base in Singapore was turned into the Asian region’s primary document destruction center. A special facility called a “splendid incinerator” was used to burn “lorry loads of files”, Agence France-Presse reported.

The “central incinerator” in Singapore was necessary to avoid a situation similar to that in India in 1947, when a “pall of smoke” from British officials burning their papers in Delhi, ahead of India proclaiming independence, filled the local press with critical reports. That diplomatic oversight was taken into account, as ‘Operation Legacy’ operatives were strictly instructed not to burn documents openly.

But not all the doomed archives could be shipped to Singapore. In some cases documents were eliminated on site, sometimes being dumped in the sea “at the maximum practicable distance from shore” and in deep, current-free areas, the National Archives publication claims.

The newly published collection of documents reveals that the British cleared out Kenyan intelligence files that contained information about abuse and torture of Kenyans during the Mau Mau uprising against British colonial rule in the 1950s. A special committee formed in 1961 coordinated document elimination in Kenya. Yet some files were spared simply when an estimated 307 boxes of documents were evacuated to Britain, just months ahead of the country gaining independence in December 1963.

The existence of some remaining Mau Mau legal case documents was revealed in January 2011.

Even after eliminating important evidence half a century ago, earlier in 2013 the British government was forced to pay 23 million dollars in compensation to over 5,200 elderly Kenyans, who had suffered from Britain’s punitive measures during the Mau Mau uprising.

In another documented occasion, in April 1957, five lorries delivered tons of documents from the British High Commission in Kuala Lumpur to the Royal Navy base in Singapore. Files were incinerated there; these contained details about British rule in Malaya, such as a massacre of 24 rubber plantation workers at the Malayan village of Batang Kali in 1948, who had allegedly been murdered by British soldiers.

Despite the mass document elimination, Britain’s Foreign Office still has some 1.2 million unpublished documents on British colonial policy, David Anderson, professor of African history at the University of Warwick, told AFP.

So Her Majesty’s government might still publish more valuable material that can shed more light on how one of the biggest empires in human history used to be governed. Overall, Britain had total control over 50 colonies including Canada, India, Australia, Nigeria, and Jamaica. Currently, there are 14 British Overseas Territories that remain under British rule, though most of them are self-governing and all have leaderships of their own.