<s>[INST] The next text is a question of a member of the European parliament:"A number of Member States have intelligence agencies which have police powers. Knowledge gained through information exchange with such agencies could be used for coercive measures. This is prohibited in countries like Germany, because of the experience with the Gestapo.  Which of their intelligence agencies (or police services with intelligence agency capabilities) have which Member States or third countries linked up with Europol, for example by means of the Europol Liaison Office in The Hague or the SIENA information system?  What results can the Commission report following the two-year survey of possible ways for Europol and the Counter-Terrorism Group (CTG), which operates as an intelligence agency, to cooperate? Why is the survey being carried out?  With which international organisations is Europol investigating possibilities for sharing battlefield information?"
Analyze carefully the text and assign it to the most relevant policy area among those listed below. Do not explain your answer and return only a number.
Policy area numbers: 1 = Macroeconomics
2 = Civil Rights, Minority Issues and Civil Liberties
3 = Health
4 = Agriculture and Fisheries
5 = Labour, employment and pensions
6 = Education
7 = Environment
8 = Energy
9 = Immigration
10 = Transportation
12 = Law and Crime
13 = Social welfare
14 = Regional and Urban issues and Planning
15 = Banking, finance and domestic commerce issues
16 = Defence
17 = Space, science, technology, and communications issues
18 = Foreign trade
19 = International affairs and foreign aid
20 = Governance and government
21 = Public Lands, Water Management and Territorial Issues
23 = Culture and media
[/INST]. Answer = [16]. </s>
A number of Member States have intelligence agencies which have police powers. Knowledge gained through information exchange with such agencies could be used for coercive measures. This is prohibited in countries like Germany, because of the experience with the Gestapo.  Which of their intelligence agencies (or police services with intelligence agency capabilities) have which Member States or third countries linked up with Europol, for example by means of the Europol Liaison Office in The Hague or the SIENA information system?  What results can the Commission report following the two-year survey of possible ways for Europol and the Counter-Terrorism Group (CTG), which operates as an intelligence agency, to cooperate? Why is the survey being carried out?  With which international organisations is Europol investigating possibilities for sharing battlefield information?