The father of a 22-year-old woman with autism and attention deficit hyperactivity disorder who took her own life after buying poison online is calling for tighter restrictions on their availability.
Hannah Aitken, 22, from Guildford in Surrey, bought the industrial strength chemical from Malaysia and had it shipped to the UK.
Her father, Pete Aitken, says the high-strength poison should be a regulated poison and only sold to those with a licence.
A government spokesperson said: "We will continue to engage with suppliers to ensure businesses are vigilant with the sale of this substance.”