Some people use the anti poker cheating app on the iPhone, cause they think there is marked cards on the poker table. The poker software app which can check out the barcode juice deck. Those device are normally be used in the casino, cause the win or loss, the money amount is big.
Speak of the private home game. the x ray glasses would be suggested, this reader can be operated by one people, very easy to handle.
You really do not even need to mark the cards. Most are already marked in some intentional or unintentional way. Ace of spades and King of clubs almost always sit on the top or the bottom of a made up deck, tending to give them a little more warp then the rest of the cards. Many card rooms contrary to Herbs contention that the cards are changed every few minutes, leave the same deck in for days, weeks even months. Many card rooms replace a single card in a deck when one is defective or breaks. Kem cards, the most common used cards, have very bad quality control between batches. The cards will vary in thickness, width and height, ink shades and corner radius, all of which make them essentially readable as marked cards. This is a wide spread problem, most card rooms do not care about this particular part of game security enough to spend the extra money to keep the cards in the game in good shape.