To understand the fine line between charity raffles and illegal gambling, it's essential to begin with the definition of illegal gambling. According to the US Supreme Court, unlawful gambling includes any game or scheme where a prize is offered to the winner. This can be a cash prize, gift card, merchandise, or even experiences. Charity raffles, in theory, do not fall under this category, as they aim to raise funds for a good cause and typically involve a raffle or drawing with a predetermined number of winners.