Lottie is among more than 40 explosives detection dogs from police forces across the country that have been taking part in a major training exercise at Bristol Airport.
Watch 'Lottie's Nose'
Lottie and the other sniffer dogs are put through their paces by their handlers throughout the terminal building and airfield, testing their ability to detect substances that could potentially harm members of the public.
The exercise, which was co-ordinated by Avon and Somerset Police's chief dog instructor, Sergeant Denis McCoy, supports the cross-government CONTEST counter-terrorism strategy - a major part of which is keeping air passengers safe.
The initial course for Avon and Somerset Police's explosives detection dogs is eight weeks of intensive training on a daily basis. The force uses positive methods where the dog is given a treat or toy as a reward.
Lottie seemed very pleased with the tennis ball she got for tracking down some dummy explosive in a knapsack.
Chris Morgan, the Head of Security at Bristol Airport welcomed the exercise. He said,
"This training will give the dogs and their handlers an invaluable insight into the workings of an airport and will ensure they are as ready as they can be to operate here - detecting and preventing crime and keeping our passengers safe."