(1) Whoever, with intent to endanger public safety, knowingly exposes to danger the life, health, person or property of another, by means of explosives, of substances which are spontaneously combustible or highly inflammable or of poisonous gases, is punishable with rigorous imprisonment not exceeding ten years. Where the criminal has exposed property only to minor damage, the punishment shall be simple imprisonment for not less than six months. (2) The punishment shall be rigorous imprisonment from five years to fifteen years in cases where the crime has been committed by placing, discharging or detonating an explosive or an incendiary weapon, which is designed to cause or is capable of causing death or serious bodily injury or substantial damage to property through the release or dissemination of biological agents or toxin against a place of public use, a State or government facility, a public transportation system or infrastructure facility with the intent to cause death or serious bodily injury or extensive destruction of such place or system where such destruction can result or is likely to result in major economic loss. (3) Whoever, knowingly but without intent to endanger public safety, endangers in like manner the life, person, health or property of another, is punishable with simple imprisonment. (4) Whoever, in the manner specified under sub-article (1), negligently endangers the life, person, health or property of another, is punishable with simple imprisonment. (5) In less serious cases under sub-article (2) or (3), the Court may substitute for simple imprisonment punishment of compulsory labour, or Impose a fine.