Dave King, from the service, said sniffer dogs and thermal-imaging equipment had been used.
"Temperatures as low as -3C have affected the sniffer dogs' sense of smell, " it added.
Sniffer dogs scanned the debris late Tuesday for signs of human remains, CNN affiliate KCTV reported.
Sniffer dogs were being used to search the smouldering wreckage for any human remains, city officials said.
Some Guayaquil schools asked the police to carry out bag inspections and do checks with sniffer dogs.
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They brought in sniffer dogs and telescopic cameras over a number if days, even searching the attic.
Using a specially trained sniffer dog, he found petrol in the carpet of the hallway but none outside.
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Armed guards and sniffer dogs have been posted at both hotels and X-ray machines are to screen guests' bags.
Civil defence teams with sniffer dogs called off their efforts late on Sunday, nearly 12 hours after the quake struck.
Xinhua also said that more than 870 firefighters have been sent to Baoxing with light rescue equipment and 11 sniffer dogs.
Xinhua also said that more than 870 firemen have been sent to Baoxing with light rescue equipment and 11 sniffer dogs.
Judge Susan Evans at Winchester Crown Court said the drugs were so well hidden that sniffer dogs could not trace them.
"I'm not sure what's going on at a microbial level, but from the sniffer test, I can say it's working, " she says.
Specialist search teams, including one using a sniffer dog, arrived at Veronica Flats in Sandplace Road, to search for a missing woman.
As well as pesticides, freezing, heating, vacuuming and even sniffer dogs to root out infestations are all used in the fight against bedbugs.
Metal detectors will be positioned at the end of the gangplank, while sniffer dogs and uniformed and plain clothes policemen will stand guard.
British airports will also use more sniffer dogs to try to find explosives, Johnson said in a speech to the House of Commons.
The Eritrean nationals were discovered by a sniffer dog named Mitzy after UK immigration officials checked the lorry at Dunkirk port in northern France.
And he said that a sniffer dog and officer would be accompanied by a responsible adult, usually someone from a school, on the buses.
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Over the course of the next two hours the officers, backed up by an eager and effective sniffer dog called Luke, made two arrests.
Rescue teams with sniffer dogs have been fanning out across Christchurch.
Police on Monday were still scouring the area where the body was found for clues, with the help of sniffer dogs, the state-run Anadolu Agency reported.
After the women were rescued, fire crews remained on the beach with a sniffer dog until they could confirm that no-one had been trapped by the landslip.
Using a packet sniffer while his device was in airplane mode, he demonstrated how each numeric tap and every received text message is logged by the software.
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Plastic wrap and glue had been used to try to confuse sniffer dogs, and carbon paper was used to try to dull the perception of X-ray machines.
This could also be important in understanding the capacities of dogs that have to interact closely with humans, such as guide dogs for the blind and sniffer dogs.
International rescue workers began pouring into Turkey on the day of the tremor, bringing with them equipment and sniffer dogs to try to locate and extract any survivors.
At the very least, this raises the possibility that the hijackers rather boldly started out with empty handguns - perhaps fearing sniffer dogs would be alerted by ammunition.
Equally important, the Sniffer also detects traces of narcotic substances.
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