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Pupils astatine Ysgol Dyffryn Aman went into lockdown pursuing 3 stabbings
Understanding wherefore children bring knives into schoolhouse is amended than a broad exclusion policy, the main inspector of Welsh acquisition inspectorate Estyn has said.
Owen Evans said the "easy answer" was to prohibition oregon exclude but helium believed determination needed to beryllium much nuance.
He said determination were aggregate reasons wherefore a kid mightiness bring a weapon into schoolhouse and a one-size-fits-all argumentation would not work.
He was talking aft a 14-year-old miss was convicted of the attempted execution of 3 people during a schoolhouse stabbing successful Ammanford, Carmarthenshire.
"You whitethorn person a kid that has each imaginable for redemption but they person fallen into atrocious signifier and we cannot exclude those radical from society," Mr Evans told Walescast.
"I deliberation you request to look astatine why. A batch of children who bring knives to schoolhouse consciousness threatened themselves oregon they consciousness that different radical are bringing knives to school.
"We request to tackle the basal issues that beryllium down that decision," helium added.
Although weapon attacks successful Welsh schools are rare, Mr Evans said "we request to larn from it".
Estyn main inspector Owen Evans says the attack needs to beryllium much "nuanced"
Estyn is presently preparing for the merchandise of its yearly study connected the authorities of acquisition and grooming crossed Wales.
Mr Evans said it could spot behavioural issues were expanding successful schools.
"It isn't crossed perfectly everything, but low-level disruption and besides these much analyzable needs we are seeing much of.
"In superior schools we are seeing children who are not potty trained. Since the pandemic, we are seeing young radical coming into schools who can't speak, who can't communicate.
"That is an issue," helium added.
He said determination needed to beryllium much enactment for pupils, teachers and schools but accepted determination were issues with capacity.
"Where you person beardown leadership, wide and consistently applied policies to behaviour and erstwhile you person bully enactment measures wrapped astir kid and the household you tin marque a existent quality to behaviours successful that setting.
"The enactment services astir that schoolhouse request to beryllium successful a presumption to prime that up and that astatine the infinitesimal is difficult.
"Demand aft the pandemic has astir doubled," helium said.
Wales' Education Secretary Lynne Neagle said a behavioural acme would beryllium held adjacent twelvemonth to tackle the "complex" problems facing schools.