Section 79, Civil Aviation Act, 2017 for an effective aviation safety and security

The Director and Accident Investigators shall, for thepurpose of investigating an accident or incident - (a) have unlimited and unrestricted access to and control of - (i) the site of the accident or incident as well as to the aircraft involved in the accident or incident, parts of such aircraft, its contents or its wreckage and to any flight recorders and other recording relating to the flight; (ii) the results of the medical examination of the bodies of victims or of tests made on samples taken from the bodies of victims; (iii) the results of medical examinations of the persons involved in the operation of the aircraft or of tests made on samples taken from such persons; and (iv) any relevant information or records held by the owner, the operator or the manufacturer of the aircraft and by the owner or operator of an aerodrome or air navigation installation or the civil aviation authorities; (b) have power to - (i) summon and examine all such persons as he thinks fit and to require such persons to answer any question or furnish any information or produce any books, papers, documents and articles which the Accident Investigator may consider relevant and to retain any such books, papers, documents and articles until the completion of the investigation; (ii) take statements from all such persons as he thinks fit and to require any such person to make and sign a declaration as to the truthfulness of the statement made by him; (iii) enter and inspect any place, building or aircraft the entry or inspection whereof appears to the Accident Investigator to be requisite for the purposes of the investigation; (iv) require the medical examination of the bodies of victims; (v) require the persons involved in the operation of an aircraft to submit to a medical examination; (vi) examine, remove, test, take measures for the preservation of or otherwise deal with any aircraft involved in an accident or incident for the purposes of the investigation including flight and data recorders; and (vii) take such measures for the preservation of evidence as he considers appropriate. (viii) delegate an investigation to anothe state or to a regional Air Accident Investigation organisation.