Manslaughter Directions Even If Defence Not Raised?

Manslaughter To Be Considered in All Murder Trials?
R v Coutts [2006] UKHL 39
HL
19 July 2006
Daily Law Notes Summary
On a trial for murder an alternative verdict of manslaughter
should ordinarily be left to the jury if there is evidence to
support it, whether the parties wish it left or not.