Details:

Accidental detonation of explosives due to drug or alcohol impairment

If an official post-investigation report exists, it must mention drug or alcohol impairment as a potential contributing factor. In the absence of such a report, official statements must mention it. Additionally, there must be no other cited cause for the explosion that outweighs the significance of potential substance impairment.

Assassination attempt or internal dispute involving Wagner personnel

Act of sabotage or violence specifically due to internal conflicts within or directly related to Wagner personnel. Broader political, ideological, or religious motivations would be resolved as 'Terrorist attack'.