What are reasonable grounds for suspecting a benefit cheat?
You may know someone who claims benefit, but you can see them leaving home every morning at the same time and returning home in the evening. They even may be wearing a uniform. This may suggest they are working. You may hear someone bragging in the pub about how they are “cheating the system”. You may know someone who is a lone parent and claims benefit, but you are aware of their partner living there who works full time.