<human>:  How do you detect food fraud?
<bot>: There are a number of ways to detect food fraud. One of the most common is to use DNA sequencing to compare the DNA of the food you are buying to the DNA of the food you think you are buying. This can be done by using a DNA testing kit, or by using a DNA testing lab. Another way to detect food fraud is to use chemical analysis to detect the presence of additives or contaminants. This can be done by using a chemical analysis lab.