1. 6-1 Emergency Response to Terrorism TC: Hazardous Materials Unit 6:Product Control

2. 6-2 Terminal Objective uThe students will be able to identify appropriate product control methods as they relate to tactical operations at a terrorist incident.

3. 6-3 Enabling Objectives uIdentify steps required to maintain the chain of custody. uIdentify considerations for the haz mat technicians in the preservation of evidence. The students will:

4. 6-4 Enabling Objectives (cont'd) uIdentify the impact of agent physical properties on product control. uIdentify uses of conventional and innovative engineering controls in the response to terrorism.

5. 6-5 Evidence Collection uCooperation needed with law enforcement agencies. uPreplanning will help. uDevelop partnership with bomb squad. uExpect terrorist events to be more complicated. uEvidence collection should never outweigh personnel safety.

6. 6-6 Evidence Collection (cont'd) uNot a hurried operation uCollect evidence before it disappears or is damaged uIf you can’t collect it, photograph it and mark the time and location

7. 6-7 Evidence Preservation uPrimary area of focus. uPhotos and videotapes must be produced for the prosecution during “discovery.” uFor fire incidents it is sometimes best to let the fire burn rather than wash away evidence.

8. 6-8 Evidence Management uDevelop procedures that simultaneously provide uAgent detection uChemical sampling uEvidence collection

9. 6-9 Evidence Collection Stock uKeep equipment used in the collection of evidence solely for that purpose uSample jars must be certified clean and kept sealed to prevent tampering. uVariety of sizes and types of collection mediums must be kept. uTo cover all the bases, stockpile chemical, glass, poly, steel, and others. uNeed ability to collect solid, liquid, and gas.

10. 6-10 Collect to Prosecute uCollection of evidence by trained personnel. uThe fire investigator is a logical choice. uUnless you have specific training, best left to law enforcement. uIn an incident involving a chemical, EPA’s collection protocols must be followed.

11. 6-11 Bomb Scene Evidence uUse all new tools, containers, shovels, and brooms uTransport must prevent contamination from past jobs

12. 6-12 Explosion--What to Look for: uEvidence may be barely discernable to the naked eye. uEvidence can be several thousand feet away, even hanging in trees. uBody parts may not be readily recognizable.

13. 6-13 Collection Media uChemicals in uncompromised containers can remain in those containers. uIf they are in the container and it’s not leaking, leave them there. uIf the outside of the container is evidence, you may need to overpack.

14. 6-14 Collection Support uLocal/County/State police, fire investigation agencies, environmental agencies, health department uState-level environmental crime units uOther agencies that collect chem evidence: FBI, Coast Guard, EPA uChem facilities with quality control division

15. 6-15 Ensure Evidence Usability uChain of custody uDocument who, when, where collected uSample is the responsibility of person who collected it until secured in proper location uAnyone who handles should sign attached log sheet

16. 6-16 Ensure Evidence Usability (cont'd) uIf not logged in and tracked, it may be disallowed by law uCollection best done by several people but responsibility of one uOne should photograph, one collects, one documents

17. 6-17 Product Control uConventional Product Control uDirect product control uUnconventional Product Control uAir-handling systems uVapor control Overview

18. 6-18 Product Control (cont'd) uSituation will dictate control measures. uFaced with thousands of potential casualties, standard haz mat tactical objectives may need to be modified. uSometimes evidence must be destroyed when lives are at stake.

19. 6-19 Conventional Product Control uAdsorption uAbsorption uCovering uDilution uNeutralization uOverpacking uSolidification uVacuuming uVapor dispersion/suppression

20. 6-20 Unconventional Use of Building Controls uPart of vapor dispersion. uVentilation as an option (but presents public relations problem). uPPV. uMost agents’ vapor pressure is low; therefore less air flow may be better. uMonitoring is essential.

21. 6-21 Unconventional Use of Building Controls (cont'd) uUse of other chemicals as a possible vapor dispersant. uA garden sprayer with a vinegar solution will alter mace chemically. uChemical additives can make quick work of an otherwise unsafe environment. uConsult with chemist prior to making this choice.

22. 6-22 Air-Handling System uCan disperse vapors uEach system different uConsult with maintenance person uMost HVAC's draw in little outside air

23. 6-23 Air-Handling System (cont'd) uTypical system for large buildings not usually helpful to terrorists. uAmount of air exchanged is very small. uOutside air is not generally used. uVery little adjustment or access to the system from the outside.

24. 6-24 Highrise HVAC Systems

25. 6-25 HVAC System (cont'd) Return air Fresh air Mixing box Chiller/Heater Distribution point Filter

26. 6-26 Air Intake

27. 6-27 Intake Controls

28. 6-28 HVAC System (cont'd) Return air Fresh air Mixing box Chiller/Heater Distribution point Filter

29. 6-29 Filtration System

30. 6-30 HVAC System (cont'd) Return air Fresh air Mixing box Chiller/Heater Distribution point Filter

31. 6-31 HVAC Systems Summary uMost highrise systems work against terrorists. uKnowledge of the system is critical. uUse of the HVAC system can benefit responders.

32. 6-32 Summary uStandard haz mat product controls have some applicability. uBiggest concern is preservation of evidence and that is usually with law enforcement. uEvidence collection done poorly lets the accused go free. uUse of HVAC has benefits for the good guys.