2Hip2BSquare
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Interesting info on search and rescue dogs. If the body has changed its chemical make up significantly from how the body was during its living stage (the samples the dogs smelled to find her from when she was living) the dead body would be hard to detect!
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The use of dogs in search activities takes advantage of dogs’ keen sense of smell. The exact nature of scent is the topic of current scientific investigation; however, loosely defined, scent is considered to be a combina- tion of chemicals that a dog can learn or be trained to identify. For example, hunting dogs identify specific animal scents, narcotics dogs identify narcotic scents, bomb dogs identify scents of explosives, and SAR dogs identify human scents. The distinctive scent that emanates from a live human is generated from contin- uous shedding of tiny flakes of skin mixed with per- spiration (watery and oily secretions). This material is called scurf. In addition to oils and watery secretions, scurf also carries many odors from a person’s clothing, shampoo, soap, deodorant, perfume, and other materi- als. Combined, these chemicals produce the scent fin- gerprint that appears to be unique to a single person. When a person dies, the unique scent emitted by that individual undergoes an almost immediate transforma- tion to a more generic scent associated with the loss of aerobic metabolism and proliferation of bacteria. Although a human does not notice the change until it is well advanced, a dog can immediately recognize the change in odor and accurately discriminate between live scent and cadaver scent.3 Although live scent is individual, cadaver scent is nonspecific and changes chemically over time during the different stages of decomposition of the body.3
Scent is most concentrated at its source (ie, the victim). The scent spreads and becomes progressive- ly less concentrated, forming a scent cone. Scent pools form when air is stagnant around the source. Factors such as wind, air temperature, humidity, soil temperature, and terrain can affect the scent cone or scent pool and where and how far it is dispersed.3 Wind can be channeled by obstructions and rapidly disperse scent in unexpected directions. The han- dler’s understanding of the dynamics of wind cur- rents is a critical part of the teamwork involved in a successful search."
So I believe, her body was exposed to the water and Any of her body sweat or skin would have been soaked in the water from tank and her own chemical makeup compromised by the chlorinated water in tank, this dogs could not smell her body. Maybe.
This might also mean that the dogs had no search of her being alive on the roof bc the only time her body was on the roof was after she was deceased. Otherwise the dogs would have smelled her living scent related to her/her bombings while alive.
Read on! https://www.avma.org/News/Journals/Collections/Documents/javma_225_6_854.pdf
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The use of dogs in search activities takes advantage of dogs’ keen sense of smell. The exact nature of scent is the topic of current scientific investigation; however, loosely defined, scent is considered to be a combina- tion of chemicals that a dog can learn or be trained to identify. For example, hunting dogs identify specific animal scents, narcotics dogs identify narcotic scents, bomb dogs identify scents of explosives, and SAR dogs identify human scents. The distinctive scent that emanates from a live human is generated from contin- uous shedding of tiny flakes of skin mixed with per- spiration (watery and oily secretions). This material is called scurf. In addition to oils and watery secretions, scurf also carries many odors from a person’s clothing, shampoo, soap, deodorant, perfume, and other materi- als. Combined, these chemicals produce the scent fin- gerprint that appears to be unique to a single person. When a person dies, the unique scent emitted by that individual undergoes an almost immediate transforma- tion to a more generic scent associated with the loss of aerobic metabolism and proliferation of bacteria. Although a human does not notice the change until it is well advanced, a dog can immediately recognize the change in odor and accurately discriminate between live scent and cadaver scent.3 Although live scent is individual, cadaver scent is nonspecific and changes chemically over time during the different stages of decomposition of the body.3
Scent is most concentrated at its source (ie, the victim). The scent spreads and becomes progressive- ly less concentrated, forming a scent cone. Scent pools form when air is stagnant around the source. Factors such as wind, air temperature, humidity, soil temperature, and terrain can affect the scent cone or scent pool and where and how far it is dispersed.3 Wind can be channeled by obstructions and rapidly disperse scent in unexpected directions. The han- dler’s understanding of the dynamics of wind cur- rents is a critical part of the teamwork involved in a successful search."
So I believe, her body was exposed to the water and Any of her body sweat or skin would have been soaked in the water from tank and her own chemical makeup compromised by the chlorinated water in tank, this dogs could not smell her body. Maybe.
This might also mean that the dogs had no search of her being alive on the roof bc the only time her body was on the roof was after she was deceased. Otherwise the dogs would have smelled her living scent related to her/her bombings while alive.
Read on! https://www.avma.org/News/Journals/Collections/Documents/javma_225_6_854.pdf
