Mumbai police probing Anil Ambani's chopper sabotage case has sought the opinion of Director General of Civil Aviation (DGCA) and experts to establish the outcome had the chopper taken off, a top police official said on Tuesday.
The officials have also sent seven pebbles found in the chopper's gear box to the Forensic Science Laboratory (FSL) for analysis to establish their type and composition.
"We are taking the help of DGCA and other experts in the case. Pebbles which were found in the gear box have also been sent for forensic test," Joint Police Commissioner Rakesh Maria told PTI.
Besides pebbles, some more samples found near the helicopter were also sent for forensic analysis.
Based on the opinion of experts, the culprits may be booked on charges of attempt to murder, police sources said, adding that now a case of creating mischief which may have endangered a life has been registered against the culprits.
So far, seven persons including two of management staff of the Air Works, which maintains the chopper, have been questioned in this case, police said.
The police have taken the custody of employee muster to check the entries between April 22 and 23 in order to pinpoint the exact time of mischief, they added.