The U.S. Army has patented a new invention designed to train and test working dogs' ability to detect explosives and other threats. The invention, called the Canine Olfactory Detection System (CODS), uses a series of scent cartridges that can be filled with different odors. The dog is then presented with the cartridges, and its response is recorded.

The CODS can be used to train dogs to detect a wide variety of odors, including those of explosives, drugs, and even people. It can also be used to test the dogs' ability to detect odors in different environments, such as in a cluttered room or in the presence of other distractions.

The CODS is a valuable tool for training and testing working dogs. It can help to ensure that the dogs are able to perform their duties effectively and efficiently.

Here are some of the key features of the CODS:

* It is portable and easy to use.

* It can be used to train and test dogs of all sizes.

* It can be used to train dogs to detect a wide variety of odors.

* It can be used to test the dogs' ability to detect odors in different environments.

* It is a valuable tool for training and testing working dogs.

The CODS is a patented invention of the U.S. Army. It is not available for commercial use.