The article is clear about it, the group who reported them to Belgian authorities have what they believe is evidence of war crimes by the individuals they report. Whether it's sufficient evidence or clear evidence is another matter, of course.

> In October 2024, the Hind Rajab Foundation submitted a report to the International Criminal Court (ICC) identifying 1,000 Israeli soldiers, backed by over 8,000 pieces of evidence — mostly from social media — implicating individuals in attacks on civilians and the destruction of Palestinian homes.