New Zealand's Inland Revenue Department said that they were working to obtain details of people who have tax residence in the country who may have been involved in arrangements facilitated by Mossack Fonseca. Gerard Ryle, director of the International Consortium of Investigative Journalists, told Radio New Zealand on April 8, 2016 that New Zealand is a well-known tax haven and a "nice front for criminals". New Zealand provides overseas investors with foreign trusts and look-through companies. New Zealand government policy is to not request disclosure of the identity of either the settlor or the beneficiaries of the trust, and thus the ownership remains secret, and as a consequence, thus hiding the assets from the trust-holder's home jurisdictions. These trusts are not taxed in New Zealand. These trusts can then be used to acquire and own New Zealand registered companies, which become a vehicle by which the trust owners can exercise day to day control over their assets. These New Zealand-registered companies can be designed not to make a profit using loans from tax havens and other profit shifting techniques: the result being tax free income with the general respectability that has typically been associated with companies registered in New Zealand.
Additional stories were released based on this data, and the full list of companies was released in early May 2016. The ICIJ later announced the release on May 9, 2016 of a searchable database containing information on over 200,000 offshore entities implicated in the Panama Papers investigation and more than 100,000 additional companies implicated in the 2013 Offshore Leaks investigation. Mossack Fonseca asked the ICIJ not to publish the leaked documents from its database. "We have sent a cease and desist letter," the company said in a statement.
The Procuraduría de la Nación announced that it would investigate Mossack Fonseca and the Panama papers. On April 12, the newly formed Second Specialized Prosecutor against Organized Crime raided Mossack Fonseca and searched their Bella Vista office as part of the investigation initiated by the Panama Papers. The Attorney General's office issued a press release following the raid, which lasted 27 hours, stating that the purpose was "to obtain documents relevant to the information published in news articles that establishes the possible use of the law firm in illegal activities". The search ended without measures against the law firm, confirmed prosecutor Javier Caraballo of the Second Prosecutor Against Organized Crime.
"This is a unique opportunity to test the effectiveness of leaktivism", said Micah White, co-founder of Occupy, "... the Panama Papers are being dissected via an unprecedented collaboration between hundreds of highly credible international journalists who have been working secretly for a year. This is the global professionalization of leaktivism. The days of WikiLeaks amateurism are over."