Supreme Court, EMI v Data Protection Commissioner [2013] IESC 34

A settlement had been reached between record companies and a large ISP, Eircom, instituting a Graduated Response Protocol under which Eircom would issue copyright infringement notices to customers.  The Data Protection Commissioner believed that this Protocol breached EU and Irish data protection law and issued an enforcement notice requiring Eircom to cease its operation of the Protocol. The Supreme Court found that the enforcement notice was invalid because of the absence of reasons.