noxious substance

A 76-year-old man was arrested at a nearby pub on Monday evening on suspicion of administering poison or a noxious substance with intent to injure, aggrieve or annoy and he remains in custody.

The boy was arrested on suspicion of attempting to cause grievous bodily harm and administering a noxious substance and remains in police custody.

Kwan had admitted administering a noxious substance to Mr O'Hara, 71, but initially claimed he only wanted to cause "pain and discomfort", the trial had heard.

He also denies wounding with intent but has admitted administering a noxious substance.

A 73-year-old woman has been released after being arrested on suspicion of administering an unknown noxious substance.