Complex sentence: Illegal drugs are often produced and sold with the intent to deceptively represent its origin, authenticity or effectiveness; and example is a claim that this marijuana sample is from from a particular area, or has special strength.
Split into simpler sentences: Illegal drugs are often produced and sold with the intent to deceptively represent its origin, authenticity or effectiveness. An example of this would be a marijuana sample with a false claim that it came from a particular area, or has special strength.