Contamination avoidance

Normal laboratory glassware must first be washed and cleaned. It has to be rinsed with deionised water. The clean glassware is sterilised in an oven set at 200 °C for 1 1 hours. It is suitable to cover glassware with aluminum foil to maintain aseptic conditions after removing the glassware from the oven. If aluminum foil is not available, special heat-resistant wrap paper can be used. The sterile glassware must be protected from the air, which has micro-flora, or any contaminants. Avoid the use of any plastic caps and papers. Detach any labelling tape or other flammable materials, as they are fire hazards. 

Nuclear Contamination Avoidance. U.S. Marine Corps Fleet Marine Force Manual 11-18, Washington, D.C. 

Improve suspect processing procedures and contamination avoidance measures. 

In conclusion, it is my opinion that the laboratory results should not be considered in isolation but should be interpreted with the knowledge that established and reliable contamination avoidance procedures are in operation and that they are monitored on a regular basis. 

One of the problems with trace evidence is the possibility of contamination/ cross contamination. Contamination has already been mentioned in chapter 24 and contamination avoidance must be a priority. If it cannot be shown that contamination is unlikely to have occurred, then the significance of laboratory positive results will be substantially diminished. 

During this time he experienced many complex and controversial cases, the vast majority of which were terrorist-related incidents. His main interests include the chemical examinations relating to firearms casework, research and development work arising from same, crime scene examination, health and safety issues, quality assurance, suspect handling and processing, and contamination avoidance procedures both inside and outside the laboratory. 

This fundamental understanding is not, however, reflected in the current Joint CBD Program, which is crafted on a philosophy of contamination avoidance in all situations, in spite of Joint Staff guidance to the contrary.22 More realistic and practical is a risk management approach which assumes that contamination will happen and balances avoidance with managing the response. With an understanding of the threat as described above, it is possible to take the next step, to characterize risk. 

The Non-Medical Science and Technology part of the Joint CBD Program is organized in five commodity areas contamination avoidance, individual protection, collective protection, decontamination, and modeling and simulation.1 The wide range of activities in each of these commodity areas is indicated in Figure 4.1 the commodity areas are further described later in this chapter and in Appendix C. 

Non-Medical S T Finding Contamination Avoidance—A Limiting Philosophy Against Asymmetric Threats... 

If an adversary s intent can be determined early enough, contamination avoidance also includes the destruction of capability before an agent is actually used. This is the agent-defeat program in DOD s active defense element for countering weapons of mass destmction. It is not discussed here because the committee s focus, as directed by the terms of reference, was on the passive defense element. 

The Navy, and with it the Joint Chemical and Biological Defense Program, should shift from a philosophy dominated by contamination avoidance toward an approach based on risk management which assumes that contamination will happen and focuses on managing the response. The foundation for a risk management approach should come from the doctrine development efforts at the Navy Warfare Development Command (as recommended in Chapter 3 of this report) and from the results of the operational net assessments in each area of responsibility (as recommended in Chapter 3). 

Development of system concepts for contamination avoidance (CA). For CA applications (i.e., the existing sensors already in the field or in development), the implications of networking remote arrays—for example, automatic target recognition, fusion, data and communications formatting, and so on—are largely nonexistent. 

With respect to contamination avoidance, there are obvious advantages to being able to detect and classify agents at ranges sufficient for avoidance reaction times. Electromagnetic (EM) interactions, which probe the energy-level structure of chemical molecules, are particularly useful in this context, leading to various... 

The decontamination story is multifaceted, as evident in the preceding discussion, but capabilities sorely lag those in the areas of contamination avoidance and individual and collective protection. Recapping the findings noted in the discussion above ... 

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