A prison union boss yesterday demanded urgent action to end the chaos in jails caused by deadly zombie spice.

He said psychoactive drugs are causing chaos for staff in Scottish jails after reaching a “very dangerous level”.

The Prison Officer’s Association (POA) called for urgent action on tackling a flood of deadly substances like ‘zombie spice’ into the estate.

It comes after six overdoses were reported in one weekend at Scotland’s maximum-security jail, HMP Shotts.

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