GIULIANI AND GAGGIO v. ITALY JUDGMENT 77 advanced technologies as well as more traditional methods. Hence, the prosecuting authorities and the investigators had carried out further questioning of persons who had already given evidence once, where this was deemed necessary, and had also taken evidence from local residents who had witnessed the events. A reconstruction of the events and test shootings had been carried out at the scene. A large body of audiovisual material, from the law-enforcement agencies and private sources, had been included in the case file. Three sets of ballistics tests had been ordered by the public prosecutor's office and the investigating judge had relied on material from sources close to the demonstrators themselves (an account published on an anarchist website). 294. The investigation had been opened as a matter of course and the applicants had had the opportunity to participate in it fully from the outset by being represented by lawyers and appointing experts of their own choosing. In particular, the applicants' experts had participated in the third set of ballistics tests and in the reconstruction of the events (see paragraph 57 above). 295. The applicants had also been able to make criticisms and requests when objecting to discontinuation of the case, and the investigating judge had provided them with sufficiently detailed reasons for refusing their requests for further investigation (see paragraph 104 above). While it was true that the applicants had not been able to request the immediate production of evidence in relation to the first steps in the investigation, checks of that kind were a matter exclusively for the police. When it came to the third set of ballistics tests, the public prosecutor had asked the parties whether they had any objections to the use of the procedure under Article 360 of the CCP, and there had been no objections. While the Government conceded that the first and second sets of ballistics tests had been carried out unilaterally (see paragraphs 54 and 55 above), they submitted that these had been no more than routine checks, aimed solely at establishing whether or not the two spent cartridges that had been found matched M.P.'s weapon. Moreover, M.P. had already admitted firing two shots and the weapon had in any case been examined again during the third set of ballistics tests. 296. Within moments of the tragedy the Genoa police (squadra mobile della questura di Genova) had intervened and taken the investigation in hand. The carabinieri had been involved only in tasks of lesser importance and mainly when it came to seizing objects in their possession – for example, the vehicle and the weapon – or summoning members of the carabinieri to appear. In addition, the prosecuting authorities had kept the number of tasks delegated to a minimum, preferring to conduct the most important interviews themselves and also those liable to be influenced by the fact that the interviewer was a law-enforcement officer. Given the level of autonomy and independence of the judiciary in Italy and the fact that the