This thesis is an investigation of teacher’s authority to use physical power in order to maintain order and safety in Swedish primary schools. According to Swedish law (5:6 Skollagen), they have an obligation and right to do so. However, teachers have expressed an uncertainty on how, and when this is justified and permitted in order to obtain a safe and calm studying environment without unlawfully limiting the children’s rights. This has been clarified in a survey made by “lärarförbundet” in 2020.          The aim of the thesis is therefore to investigate when a physical correction can be allowed in order to obtain a safe and calm studying environment, and what consequences a physical correction that would turn out to be unlawful would have for an individual teacher.          The investigation shows that the law regulating the authority to physically correct a student is not clear and that it can be difficult for a teacher to beforehand determine if an intervention will turn out to be lawful or not. For teachers who have acted unlawfully according to court or inappropriate according to “Lärarnas ansvarsnämnd” an outcome can have both professional and personal consequences.