In In re Marquis H. (2013) 212 Cal.App.4th 718, the Court affirmed the finding of jurisdiction over the child under section 300, subdivision (a) where the parents had severely physically abused their two grandchildren, who were also in their custody. (Marquis H., supra, 212 Cal.App.4th at pp. 720-721.) The abuse inflicted by the grandparents included burning the children with an iron and hitting them repeatedly with bats, electrical cords, belts, brooms, and crutches. (Id. at pp. 721-722.) On appeal, the parents maintained that jurisdiction over their own son under section 300, subdivision (a) was not appropriate because the statute refers only to abuse of the "child or the child's siblings" and the children they abused were not the biological siblings of their son. (Marquis H., at p. 725.) The court rejected this argument, stating that section 300, subdivision (a) does not prohibit the juvenile court's "exercise of jurisdiction in situations other than those specified in the second sentence of the statute." (Marquis H., at p. 725.) In holding that the provision was applicable to the facts before it, the court further stated "The permissive language of the second sentence merely sets forth scenarios in which the statute may apply." (Ibid.)