Critical Discourse Analysis (CDA) has often proved fruitful in providing insights into the relationship between language and ideology. However, CDA is not without its critics. Constructive criticism has been offered by Stubbs, who suggests bolstering CDA by using a large corpus as the basis on which to make reliable generalisations about language use. Taking up that suggestion, this paper reports on a study of a group of words semantically related to corruption. In the study, corpus methodology is used to manipulate the data: concordances and collocational tools are used to provide semantic profiles of the words and highlight connotational differences, and to identify the geographical locations that the words refer to. It is argued that words with a noticeably negative connotation tend to be used when referring to activities that take place outside of Britain, while less negative words are used when referring to similar activities in British contexts. CDA theory is drawn on to interpret the ideological significance of the findings.