The routine meat inspection procedure for bovine cysticerosis involves visual inspection of the cut muscles of the split carcase and at several predilection sites after incision (internal and external masseter muscles, tongue, heart and diaphragm) of bovine carcases over six weeks of age (Regulation (EC) No: 854/2004). The objectives of this study were to describe the prevalence of C bovis cases within Northern Ireland, to analyse the differences in the recorded number of cases of C bovis across Northern Ireland over the past decade, and to ascertain whether or not there is any difference in the number of cases of C bovis detected in Abattoir A compared with the other abattoirs since the change in technique. A search of the Animal Public Health Information System (APHIS described in detail by Houston 2001 ) generated data on the recorded number of cases of C bovis in the 10 bovine slaughterhouses in Northern Ireland between 2001 and 2011. ...assigning a specific reason for a particular brief increase in detection rates in one abattoir using secondary data becomes virtually impossible without further data, such as the carcase site the lesions were found at.