Since her son’s death, Lisa Petrie has campaigned for stricter rules around the sale of kitchen knives, arguing that they should be given the same security packaging as bottles of spirits or removed from shelves and placed behind counters.
She has also called for tighter restrictions on the sale of knives like the blade which was used in her son’s murder.
Selling such knives to under-18s is against the law. She has not been told how the teenager who murdered her son got hold of the weapon.
The care support worker has also asked why the killer was granted bail after he chased and slashed a 16-year-old teenager at Portobello Beach four months earlier, saying he should have been detained in a secure unit.
“It’s his first offence, and he’s used a knife, so why was he just allowed to walk free?,” she said.
