This network of liaison officers communicates via the SIENA system, a state-of-the-art tool that enables rapid, safe and user-friendly communication, as well as the exchange of operational and strategic information and information on crimes between Europol, Member States and third parties that have concluded cooperation agreements with Europol. Denmark has not been allowed to participate in the overhaul of the 2016 Europol Regulation because it disconnects from the area of freedom, security and justice. In a referendum in December 2015, she opposed the transformation of her opt-out into a case-by-case opt-in, which would have allowed her to participate in the new regulation and remain a member of Europol. However, Denmark and the European Union agreed on a cooperation agreement in December 2016. The agreement was adopted by the European Parliament and the Danish Parliament on 27 April 2017 and signed on 29 April 2017, two days before Denmark was cut off from the Agency.    Although both types of agreements aim to improve cooperation between Europol and the country concerned, there is a big difference: strategic agreements are limited to the exchange of general and strategic and technical information, while operational agreements allow the exchange of information, including personal data. The EU and New Zealand have agreed to strengthen cooperation in prosecutions following the Christchurch attacks. On the basis of a working agreement signed in April 2019 (see eucrim 2/2019, p. 89), Europol and New Zealand can exchange strategic information, but no personal data. Europol`s partnerships and external agreements have different forms depending on the Agency`s relations with the country concerned.
With its 20th report on the progress of an effective and genuine security union, the European Commission recommended that the Council allow negotiations for an agreement between the EU and New Zealand. The initiative aims to enable Europol and New Zealand`s enforcement agencies to exchange personal data to combat serious forms of crime and terrorism. Europol also works closely with a number of EU institutions and agencies on the basis of cooperation agreements. In general, there are two types of cooperation agreements that Europol can conclude with states and other bodies outside the EU: strategic and operational agreements. The Director of Europol is able to conclude agreements for Europol with other countries and international organisations. Since September 2017, Europol has been cooperating operationally with Albania, Australia, Bosnia and Herzegovina, Canada, Denmark, Colombia, Georgia, Iceland, Liechtenstein, Moldova, Monaco, Montenegro, Northern Macedonia, Norway, Serbia, Switzerland, Ukraine and the United States of America, as well as Interpol.     Similarly, the Agency has strategic agreements with Brazil, China, Russia, Turkey, the United Nations Office on Drugs and Crime (UNODC) and the World Customs Organization (WCO).   New Zealand has been placed on the list of priority countries with which the Commission intends to conclude operational security agreements to combat terrorism, migration and other serious forms of crime.
So far, countries in the Middle East/North Africa (MENA) region are among these countries. The Commission stressed that the EU and New Zealand are partners with similar views and approaches on many global issues. According to Europol, there are mainly common operational interests in the following areas: terrorism, cybercrime (including the sexual exploitation of children), the prohibition of offenders on motorbikes and drug trafficking.