Attempts to Commit Offences
When a different act is done than the one abetted, the abettor is liable for the act actually done, in the same manner as if they'd directly abetted it - provided that act was a probable consequence of the abetment and was committed under the instigation's influence or in pursuance of the conspiracy/aid.
If you set someone up to commit one crime, and a foreseeable variation happens instead (rather than exactly what you planned), you're still held liable for what actually happened - as long as it was a genuinely probable consequence of your abetment, not a completely separate, unrelated act.
Someone who instigates and provides tools for a burglary is liable for a murder committed by their accomplices during that burglary if the murder was a probable consequence of the plan (e.g. the accomplices were armed and resisted by occupants), even though murder specifically wasn't the original instigated plan.