All of the above-common tactics also include phony prizes, investments in oil leases, gemstones, and substandard office supplies. the federal trade commission estimates that american consumers lose $40 billion each year from fraudulent phone practices. more recently, criminals will pose as court employees and tell their victim that they have been chosen for jury duty. the criminal will then ask to verify information such as their name, social security number, and credit card number. to hear a samples of a real fraudulent telemarketers conversation, go to the department of justices website (go to the middle of the page, and find charity scheme, prize-promotion scheme, and rip-and-tear scheme.).