https://www.centreformentalhealth.org.uk/wp-content/uploads/2020/01/Briefing_54_traumainformed-schools_0.pdf

Interesting briefing summary from the Centre for Mental Health on the links between challenging behaviour and trauma, with many references to existing reports, research and understanding of trauma.

The summary, though, misses the key element that I have written about and trained professionals on for years: that challenging behaviour is a communication of the trauma suffered by the child and is part of their attempt to recover from it:

Challenging behaviour and trauma are associated. Young people who show challenging behaviour are more likely than average to have been exposed to trauma. Furthermore, thereis evidence that, in some cases, challenging behaviour is a symptom of trauma. [Centre for Mental Health]