The booster bag is one of the most known tools of the cunning shoplifter. It is easy to make, inconspicuous and cheap. The idea is to build a shopping bag from an existing brand name store and block all radio communication from escaping the bag. Radio signals which are generated by all types of security devices, including Sensormatic tags, Sew in tags, game case bar labels and everything else. I had hoped to sell professional booster bags here in the store but it turned out to be far to expensive and I would have most likely had legal issues selling you guys brand name shopping bags, so let's get you the information to do this yourself if you with. In effect what you would be building is what is called a Faraday cage, and this can be built from an array of materials. The most popular of materials is tin-foil naturally. Heavy-duty aluminum foil is obviously preferred and what you will need to do is, actually line your shopping bag with around 30 layers of foil. Yes, 30 layers is what most professional shoplifters will tell you is effective for stopping all tags. The large amount of metal will reflect radio signals in between the layers of aluminum both absorbing and containing. Be warned: rumors are going around that new security systems can actually detect large amounts of reflecting metals such as aluminum. What some thieves have done is trade up from aluminum to something a little more professional. Steel or copper mesh. This stuff is not cheap, but to a professional thief, they can afford the investment. Copper or steel fabric carries less weight, makes almost no noise when moving, and actually does a much better job in just one layer of stopping radio frequencies. You will want a fine mesh, don't be afraid to ask your supplier about the RF blocking properties of the mesh. If it can block a cellphone call you should be in the clear. Some people have even suggested RF blocking paint. there are many possibilities out there. Something I have been thinking of, but have not tested, is placing one of those pizza delivery boxes inside of a shopping bag and seeing if it is a good Faraday cage. Own one? Let us know in the comments. The Heist For the application of the device, the procedure is quite simple. the basic run down is; put item in bag, leave store. This is seen more than anything in shopping malls. A thief will take a bag from one store, complete his/her booster bag and go "shopping" . By that I mean, walk in to a different store than what is on the bag, and load up. Mall personal will not be phased by a consumer shopping around with a loaded bag. The thief will then throw expensive items into the bag while being as stealthy as possible, and leave without setting off the alarm. Read more The Booster bag is one of the many, many tools and schemes covered in our eBook "CommonThief: Shopkeepers Beware" , so if you were interested in reading about the booster bag, consider giving out official ebook a read. Wan't to remove tags from clothing? you may be interested in our Sensormatic hook!