would go beyond those of article VI and which would enable the international inspectorate to inspect undeclared facilities, but without invoking the full panoply of article IX: in short, ad hoc verification. To our minds, ad hoc verification provides the means whereby the international inspectorate can, in a routine manner and with the minimum necessary amount of intrusiveness, periodically "sample" the activities of undeclared facilities and thereby ensure that there are no activities going on at such facilities that would threaten the purposes of the convention. From this perspective, ad hoc verification should not be seen as a substitute for or an extention of challenge inspection; rather, it complements the regime by providing another needed component for effective verification. We regret that this summer's discussions have revealed that, despite what we had thought were clear explanations of both the Australian paper (CD/CW/WP.286) of 11 April and the United States working paper (CD/CW/WP.300) of 27 June, there is still a considerable amount of concern and uncertainty about what ad hoc verification would involve. We hope that during the next few months, particularly in the intersessional discussions, we and other supporters of the concept will be able to better explain both our reasons for recommending it and its implications. At the same time, we would expect that other negotiators will approach further discussions on this issue with an open and constructive mind. CD/PV.573 6 (Mr. Shannon. Canada) We are convinced that if we can develop a fully effective verification regime - one that incorporates both a rigorous challenge inspection component and an ad hoc verification component - we will have leapt over perhaps the biggest remaining hurdle to the realization of the convention. There are, as indicated, a number of other major problems that are critical to ensuring the globality and comprehensiveness of the convention, but we believe that they, 
**Analysis**
The text appears to be discussing a treaty or convention related to chemical weapons, mentioning concepts such as verification, inspection, and international inspectorate. The language used is formal and diplomatic, suggesting a negotiation or diplomatic context. The focus is on ensuring the effectiveness of the treaty, with a emphasis on developing a comprehensive verification regime.

**Category**
International trade, Science and technology