purposes. The practicality of the inspection procedures in the "rolling text" was thoroughly tested and a number of suggestions are made in the paper for modifications and improvements. In addition, it was found that the model for facility agreements for single small-scale facilities found in appendix II was more appropriate for larger dedicated facilities and required some adaptation in order to be used for a laboratory. It is our hope that the results of this trial will prove to be a useful contribution to the work of the ad hoc Committee on Chemical Weapons. Further national trial inspections are being considered in Canada, and results will be reported when available. There are in addition two other papers which we have also asked the secretariat to distribute to you. The first we originally made available in September 1989 during the Canberra Government-Industry Conference against Chemical Weapons. This report, which is entitled "Role and function of a national authority in the implementation of a chemical weapons convention", was prepared by Dr. Ronald Sutherland of the University of Saskatchewan. The report reviews the obligation to the chemical weapons convention of a State party that does not possess chemical weapons. It attempts to assess how such a State party can demonstrate compliance using existing organizations and also suggests the probable costs involved. We hope that this report will be of help both in furthering work on the "rolling text" and to Governments contemplating the establishment of a national authority. And finally, we have asked that the secretariat distribute the fifth in a series of verification brochures issued on a periodic basis. Entitled "Canada and international safeguards: Verifying nuclear non-proliferation", this brochure provides background information on Canadian support of the nuclear non-proliferation régime and, in particular. International Atomic Energy Agency safeguards. It also describes the achievements of the Canadian 
**Analysis**
The text appears to be related to international cooperation and verification processes, specifically in the context of chemical weapons and nuclear non-proliferation. It discusses the development of inspection procedures, national authorities, and international agreements, which suggests a strong connection to science, technology, and international relations.

**Category**
Science and technology, International trade