Public order is affected only when contravention of any law affect the community or the public at large. Every act of assault or injury to specific persons does not lead to public disorder. When two people quarrel and fight and assault each other inside a house or in a street, it may be said that there is disorder but not public disorder. Such cases are dealt with under the powers vested in the executive authorities under the provisions of ordinary criminal law but the culprits cannot be detained on the ground that they were disturbing public order. A mere disturbance of law and order leading to disorder is thus not necessarily sufficient for action under the Preventive Detention Act but a disturbance which will affect public order comes within the scope of the Preventive Detention Act.