Your partner and you are only as good as your training. Successful interdiction of banned goodies relies upon hundreds of hours of training over a working lifetime. Part of that is conditioning your partner to seek and find a source. Typically, someone holding illicit substances isn't going to just have it sitting the front seat (although I've heard stories). Your team's ability and chances to find 'stuff' will be better if you're more creative in your training. The ability to hide source material anywhere is a huge asset. These nifty boxes are made from aluminium and don't retain and scent (but should be thoroughly cleaned between sessions). They have a magnet so you can hide there anywhere that's go a magnetic source. Instant hide! Comes in two sizes: 6 and 12 inch.