During the early modern period, Ireland had a separate court system but English statutes applied, and practice and procedure (and the education of the practitioners) followed English common law.
The social climate was of course heavily impacted by the settling of foreigners - predominately (but not exclusively) English and Scottish.
Witchcraft and Whigs : the life of Bishop Francis Hutchinson, 1660-1739 by 
Witchcraft and Magic in Ireland by 
The Templars, the witch, and the wild Irish : vengeance and heresy in Medieval Ireland by