Placing Christmas crackers on the dinner table seems like something many of us will do as a Christmas tradition. However, those in charge of purchasing the festive items this year must ensure they aren't violating a specific rule that they might not already be aware of. According to current laws , Christmas crackers are technically classed as a category one firework due to the small amount of explosive (silver fulminate) in the 'snap'. This is the lowest of the four categories, which also