Oscar wrote:
No hoax call - no accident

Sounds good, but it is a dangerous argument.
Consider the following scenario.
Fred empties a smouldering ashtray into a litter bin. A few moments late the bin ignites. Fred is unable to extinguish the blaze and calls the fire brigade.
On the way to the (genuine) fire the engine runs over a pedestrian.
Now, Fred was "Careless" in that he hadnt made sure the ashtray was safe before emptiying it.
Do we blame Fred for the death of the pedestrian??
Do we proscecute him for it??
If so, on what charge??
It is tempting to bring in "New Laws" to deal with these sorts of high profile case, but it is dangerous! there is an old adage "Hard cases make bad law" this means that we should "Not" bring in new laws as the result of rare but tragic or extream cases. Time and time again we see the consequences of this sort of thing and we need to be REALLY REALLY carefull about alowing the state to introduce broardly worded "Catch all" laws on the back of high profile tradgidies because we dont really know what they will end up using them for (You know the sort of thing, Using anti-terrorisim laws to remove Labour party confrence hecklers You should try reading the most recent piece of anti-terror legislation. The definition of "Terrorisim" and "terrorim related activites" are positivly scary! and could be used to imprison almost anybody if they decided that they wanted to "Get" you

!)
On a more general note there has been an unhealthy trend over the last few decades of introducing legislateion that seeks to use "criminal" law to punish people for the "Consequences" of their actions (No matter how remote) rather than their intent and actions. A good example of this is the "Causing death by..." laws which represent an outrageous abuse of the traditional sytem of criminal law.
(This is what I mean by the confusion of the distinction between "Culpability" and "responsibility")
I could go on-and on. and on
But back to topic.
He is certainly guilty of perpetrating a Hoax.
Is there a crime of "Wasting fire service time" as with the Police??
Manslaughter? (I would argue possibly too remote, IE too many other factors involved the biggest being the competance of the engine driver. The same goes for the "Alternative casualties" scenario posted by Botach. You would have to prove beyond reasonable doubt that, but for the hoax, the other party would have been saved. The "Fred" scenario earlier in this post also applies. Do you charge Fred under similar circumstances??)
"Wreckless endangerment" (Of Life) Does such a charge exist??
If not, Should it??
Or is it a bit too "Catch all" (You are nicked sir, smoking in a public place, that will be 12 years!)
Hmm