A former Donegal garda plotted to blackmail the county’s most senior officer by secretly taping a conversation with him over the IRA’s torture of an informer, it emerged today.

A disgraced Superintendent who orchestrated fake IRA explosive dumps across county Donegal was today sacked from An Garda Siochana.

Hoax IRA arms dumps, corrupt senior gardaí, and claims of harassment have already rocked An Garda Siochana yet tomorrow sees the start of another two years of inquiry.