An embittering agent such as denatonium can be added to ethylene glycol to help discourage either accidental or deliberate poisoning.

'So you're still going to treat this as a case of deliberate poisoning?'

Does that rule out the possibility of a deliberate poisoning?

When a toddler comes into the emergency room, having just swallowed all of Daddy's antianxiety medicine, it is rare for anyone to consider deliberate poisoning.

Officials are now treating this incident as a deliberate poisoning, and an investigation is underway.

Some 60 pet dogs and cats died as a result of deliberate poisoning by the owners' neighbours.

"Have you ever known the venom to be used in a case of deliberate poisoning?"

Many of them were killed by "shoot exercises" and deliberate poisoning to exploit the sea lions, the staple of the Yaghan diet.

But when the Franciscans lost their privileges in 1572, many of these fountains were not guarded any more and deliberate well poisoning may have happened.

There must be a connection between that and the deliberate poisoning of Alfred.