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CUESTIONES POLÍTICAS 
Vol. 40 Nº 75 (2022): 457-482
A  military  guard  dog  is  dierent  from  police  patrol  dogs,  which  are 
trained to protect a handler. Military guard dogs are trained to alert their 
handlers to the approach or presence of strangers and are used to guard 
supply depots, airports, military factories, bases and other important 
facilities. Scout dogs are trained to work in absolute silence to detect 
snipers, ambushes and other enemy forces nearby. Messenger dogs learn 
to work o-leash and must be equally loyal to two trainers. They must be 
motivated to leave one trainer to go to another, and vice versa, to transmit 
and deliver messages at a distance. 
Messenger dogs are also trained to move silently and hide in their 
surroundings to keep themselves safe while following their routes. Mine 
detection dogs  are  trained to  nd  tripwires, trap  mines,  as well  as  metal 
and non-metal mines. Explosive detection dogs are trained to alert when 
they detect the scent of relevant chemicals. Dogs are trained to respond 
to the following scents: nitrate and chlorate salts, HMTD, TATP, PETN, 
RDX (labelled and unlabelled), TNT, C4 (labelled and unlabelled), Semtex 
A&H, smokeless powder, black powder, dynamite and their derivatives. 
Some devices can only be detected by dogs because the explosives are 
contained in wooden or plastic boxes and the electric fuse is made of 
graphite. 
Search dogs detect narcotic drugs and psychotropic substances, 
such as marijuana, hashish, cocaine, heroin, LSD, methamphetamine, 
ecstasy. Learning to nd electronic equipment by scent is the least known 
specialization, which is highly in demand in dog training. trained detection 
dogs can identify respiratory secretion samples from hospitalised and 
clinically diseased SARS-CoV-2 infected individuals.
Rescue dogs are trained to search for both alive people and dead bodies 
in obscure or hard-to-reach places. Cadaver dogs are commonly used in 
police  operations  in  special  units.  Cadaver  dogs  can  nd  whole  bodies, 
decomposed bodies, and body remains (such as blood, tissue, hair, bones, 
and skeletal remains). Cadaver dogs can operate in water to nd submerged 
bodies. They sit in front of the boat, scan the environment, and bark when 
they intercept target molecules on the water surface. 
This limits the search area and makes the work of divers easier. Presence 
of the dog in the courtroom is a new direction in the training of working 
dogs. A police dog is trained to handle emotionally strained situations, 
such as cross-examination, where a rape victim comes face-to-face with 
the assailant. The dog does not leave the victim in court, allows itself to be 
stroked and hugged. This provides support in court for victims of crime, 
especially those who have suered violence or sexual abuse.
Some military dog breeding organizations, such as the Swedish Armed 
Forces, have their own breeding programmes. Dog training centres are