Exam 5 Flashcards
Any chemical compound, mixture, or device, the primary or common purpose of which is function by explosion is known as a?
Explosive
What is the sudden and violent escape of gases from a central point accompanied by high temperature, violent shock and loud noise?
An explosion
What are the 3 basic types of explosions?
- Mechanical
- Chemical
- Nuclear
What chemical explosion happens when gasses move at subsonic speeds?
Low Explosives
Low explosives do what and at what speed?
Deflagrate at less than 3,300 fps
What type of explosion is initiated by heat and shock, instantaneously decompose and gases travel at supersonic speeds?
High Explosives
High explosives do what? and at what speed?
Detonate more than 3,300- 30,000fps
What is the ability of a high explosive to rip, tear, or break materials in close proximity ?
Brisance
What is the first step of an explosive train?
Initiation
What is an ordered combination of explosives necessary to achieve an explosion?
Explosive train
What is the imposition of heat and/or shock in sufficient to start chemical break up?
Initiation
Low explosives typically only need what to deflagrate?
a flame
high explosives need what to detonate?
Heat plus shock
What is either the incomplete consumption of the explosive or complete consumption, but at a lower than optimum velocity, usually because of deteriorated explosives or human error?
Low order detonation
What is the high order detonations that result in the initiation of one explosive from the shockwave of another detonation in close proximity?
Sympathetic detonation
What is directly related to the functioning velocity of an explosive?
Velocity of Detonation
What are the 3 effects of an explosion?
- Thermal
- Blast Pressure
- Fragmentation/Shrapnel
What is the instantaneous rise in atmospheric pressure following a blast?
Overpressure
what positive blast pressure moves outward from the origin of the explosion, displaces, compresses and heats the surrounding air creating a vacuum behind the incident wave?
Negative Blast Pressure
What occurs when the blast pressure wave strikes an immovable object in its path?
Shielding
What occurs when the blast pressure is able to escape a confined space?
Venting
Pieces of the bomb casing, container, steel fragments is
Primary Frag
as the blast breaks and then propels environmental objects outward you have?
Secondary Frag
What is added to a devices to increase lethality?
Shrapnel
Propellant such as black powder, smokeless powder and pyrotechnics such as flash powder and time fuse are what type of explosives?
Low Explosives
What type of explosive is flame sensitive and require confinement in order to explode?
Low Explosive
Safety/time fuse has what core?
Black Powder
What type of explosives are extremely sensitive to initiation by friction, shock, static, heat or a combination of these?
High Explosives
Secondary explosives require what?
help of a primary explosive in order to function
what is the most commonly known commercial secondary high explosive?
Dynamite
What should you do if you see crystallized dynamite?
Do not move or touch it
What is the standard by which most other explosives are measured?
TNT
TNT has a power (Relative explosive) rating of what?
1.0
What are the explosive components of shocktube?
HMX and aluminum powder
C-4 has a detonation velocity of how many feet per second?
26,400
What is any material or mixture, consisting of a fuel and oxidizer, intended for blasting not otherwise defined as an explosive?
Blasting Agents
Blasting agents require what to detonate in an explosive train?
booster
What are made with readily available components or precursor chemicals ( fuels and oxidizers)?
Home-made explosives
To protect interstate and foreign commerce against interference and interruption by reducing the hazard to persons and property arising from misuse and unsafe or insecure storage of explosive materials is
the congressional mandate that gave ATF the ability to enforce federal explosive laws and regulations
What are the 6 objectives of the ATF explosives program?
- Reduce violent crime
- Assist Federal, local and state officers
- Advance public safety
- Deny the acquisition of explosives to prohibited persons
- Remove hazards to the public caused by improper use/storage of explosives
- Provide investigative and technical assistance to inter-agency to combat terrorism
What Titles give ATF statutory authority for explosives and bombing investigations?
- Title XI of the Organized Crime Control Act of 1970
- Title II of the Gun Control Act of 1968
- Title 28 USC section 599A
What directs that ATF is responsible for enforcing the criminal and regulatory violations of the Federal explosive laws?
Title 28 USC section 599A
What Agencies are involved in explosives enforcement?
- DOJ (ATF and FBI)
- USPS
- DOT
- EPA
- CPSC
- Stale/local fire marshall
- state/local police
Lead agency determination is derived from what 3 elements?
- the law
- jurisdiction
- special agreements
Terrorism is presumed when the target is
- mass transit/ infrastructure
- critical infrastructure
- Gov’t facilities
- densely populated areas
- explosives involving chemical, biological, radiological or nuclear agents
What are the 5 specific non-terrorism crimes where FBI would initially assert lead jurisdiction?
- Bank robbery
- Civil rights violations
- Extortion
- Federal kidnappings/hostage
- Assault/ killing of Fed officer
Are ATF agents authorized to defer explosives jurisdiction to another agency without supervisory consultation?
No
Conflicts over Investigative/Jurisdictions will be resolved at what level?
field office or division level (RAC/ASAC)
I-Note notification must be submitted by
close of business day or if after hours 7am the following day
ATF JSOC must be notified within how many minutes of the agents arrival on scene?
30 min
Who is allowed to render explosives safe?
ATF EEO’s and CES/Bomb techs
What should be the driving force of your legal basis for explosive investigations?
Elements of crime
Once explosives are safely recovered what must be done?
they must be traced to determine if they were reported stolen
How should all suspect devices be treated until proven otherwise?
as if it is a live bomb
What is commonly referred to as the Explosive Control Act?
Title XI Organized Crime Control Act of 1970
What was the purpose of Title XI ?
- Protect interstate and foreign commerce against interference of explosives
- assist the state in regulating explosive distribution within their borders
What was NOT the purpose of Title XI?
to place unnecessary restrictions on law-abiding citizens with respect to acquisition, possession, storage or use of explosives for legitimate reasons
What law is commonly referred as the Black Powder amendment? Who does it apply too?
18 USC 845 (a) 5, purchasers only