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Hauptbeschreibung: Ging man in den neunziger Jahren noch davon aus, mit der Neugestaltung des Nachrichtendienstrechts durch den Gesetzgeber habe sich auch der Streit um das Trennungsgebot und damit um die Frage, ob Polizei- und Verfassungsschutzbehörden kraft Verfassungsrecht getrennt sein müssen, überlebt, so hat sich in jüngerer Zeit die sicherheitspolitische Debatte, ausgelöst durch die Terroranschläge des 11. September 2001, auch insoweit wieder ebenso unerwartet wie dramatisch verschärft. Dabei ist gerade auch die Tätigkeit der Nachrichtendienste und des Bundeskriminalamtes in den Mittelp

11 pags., 6 figs., 2 tabs. -- This article belongs to the Special Issue Electron and Photon Interactions with Bio(Related) Molecules ; Experimental results for the electron impact ionization of benzene, providing double (DDCS) and triple differential cross sections (TDCS) at the incident energy of 90 eV, measured with a multi-particle momentum spectrometer, are reported in this paper. The most intense ionization channel is assigned to the parent ion (C6H6 + ) formation. The DDCS values are presented for three different transferred energies, namely 30, 40 and 50 eV. The present TDCS are given for two fixed values of the ejected electron energy (E2 ), at 5 and 10 eV, and an electron scattering angle (θ1 ) of 10◦ . Different features related to the molecular orbitals of benzene from where the electron is extracted are observed. In addition, a semi-empirical formula to be used as the inelastic angular distribution function in electron transport simulations has been derived from the present DDCS result and compared with other expressions available in the literature. ; F.C. acknowledges the Radiation Biology and Biophysics Doctoral Training Programme (RaBBiT, PD/00193/2012); UCIBIO (UIDB/04378/2020) and together with P.L.V. and A.I.L. the Portuguese National Funding Agency FCT through the Research Grants CEFITEC (UIDB/00068/2020) and PTDC/FISAQM/31281/2017. L.Á. thanks the local CAM government and MICIU, respectively, for their corresponding grants within the "Garantía Juvenil" programmes. ; Peer reviewed