It wasn't planted. Prison management has entered a humanized and standardized mode, and prisoners are basically not allowed to take part in labor outside prison. They all work in various processing plants built in the prison, which are built under the technical guidance of the contractor and have long-term and stable orders. Prisoners are generally engaged in garment processing, footwear processing, paper making, knitting and electronic processing. Their working hours are about eight hours a day. If they need to work overtime, they will extend their working hours appropriately, take a day off every week and study for one day (ideological transformation). Although the type of labor is no longer heavy manual labor, the daily task is still heavy, and the task amount is determined according to the previous output data. A normal prisoner needs to complete the daily task, which can be basically completed. This is accurately calculated, but to complete this task, he needs to devote himself to production and can't relax for a moment.