IS there a cannabis farm on your street? Here are the signs to look out for. Police discovered 10 cannabis farms or factories in Swindon homes between July 2020 and January 2021, suggesting they are popping up more often. These operations manufacture illegal Class B drugs and often exploit vulnerable cuckooed residents, victims of human trafficking and modern slavery. Insp Carly Nesbitt said: “These so-called farms cause no end of problems for the community from where they operate. “Often, vulnerable victims of human trafficking and modern slavery (often illegal immigrants) are forced to act as caretakers for the farms or factories - being forced to stay in uninhabitable conditions to look after the plants and machinery.