72 GIULIANI AND GAGGIO v. ITALY JUDGMENT officers could be held liable for having left a lethal weapon in the hands of a carabiniere who was considered unfit to remain on duty. 274. If the Government were correct in their assertion that the investigation could not be extended to persons other than those suspected of having committed the offence, it was the domestic law that was incompatible with Article 2 of the Convention. Furthermore, the public prosecutor, in requesting that the proceedings be discontinued, had referred to problems (without specifying what they might be). Since this finding had not prompted an investigation into the causes of the problems and who was responsible for them, the Convention had also been breached on account of the prosecuting authorities' choice to conduct an incomplete investigation. 275. The applicants deplored the fact that, far from being punished, M.P.'s superior officers (officers Leso, Truglio, Cappello and Mirante) had all obtained promotion. Furthermore, some police officers suspected of unlawful arrest and violence towards demonstrators had likewise been promoted. However, in a judgment of 18 May 2010 the Genoa Court of Appeal had sentenced some of these senior officers to prison terms ranging from three years and eight months to five years for offences committed at Diaz school during the G8 (twenty-five of the twenty-seven accused had been convicted and had received custodial sentences totalling eighty-five years). The day after that judgment was delivered, the Under-Secretary of the Interior had stated that none of the senior officers convicted would be dismissed and that they continued to enjoy the Minister's confidence. (ii) The Government 276. Referring to their observations concerning the circumstances in which an investigation could be considered to be defective (see paragraph 269 above), the Government alleged that, since no liability arose in connection with the conduct of the public-order operations, the fact that it had not been the subject of investigation was without consequence. The Chamber itself had concluded that the planning and organisation of the G8 in Genoa had been compatible with the obligation to protect life under Article 2. Accordingly, there was no reason to investigate the persons responsible for the planning. 277. The Chamber had criticised the investigation for not elucidating the reasons why M.P. had not been taken straight to hospital, had been left in possession of a loaded pistol and had been placed in a jeep that was cut off and had no protection. The Government observed that the domestic investigation had been unable to establish with certainty whether the jeeps had followed the detachment of carabinieri on the drivers' own initiative or because they were ordered to do so. In any event, this had been the only reasonable course of action given that the jeeps were required to travel together and under cover of the detachment. M.P. had been placed in the jeep because of a sudden event (his personal state) and the vehicle had