(1987), p. 499, 'habitually' means constant, customary and addicted to specified habit and the term habitual criminal may be applied to anyone who has been previously convicted of a crime to the sentences and committed to prison more than twice. The word 'habitually' means 'usually' and 'generally'. Almost similar meaning is assigned to the words 'habit' in Aiyar's Judicial Dictionary, 10th Edn., p. 485. It does not refer to the frequency of the occasions but to the invariability of practice and the habit has to be proved by totality of facts. It, therefore, follows that the complicity of a person in an isolated offence is neither evidence nor a material of any help to conclude that a particular person is a "dangerous person" unless there is material suggesting his complicity in such cases which lead to a reasonable conclusion that the person is a habitual criminal. In Gopalanchari v. State of Kerala, AIR 1981 SC 674 this Court had an occasion to deal with expressions like "bad habit", 'habitual', 'desperate', 'dangerous', and 'hazardous'. This Court observed that the word habit implies frequent and usual practice. Again in Vijay Narain Singh v. State of Bihar, 1984 (3) SCC 14 this Court construed the expression 'habitually' to mean repeatedly or persistently and observed that it implies a thread of continuity stringing together similar repetitive acts but not isolated, individual and dissimilar acts and that repeated, persistent and similar acts are necessary to justify an inference of habit. It, therefore, necessarily follows, that in order to bring a person within the expression "dangerous person" as defined in clause (c) of Sec. 2 of the Act, there should be positive material to indicate that such person is habitually committing or attempting to commit or abetting the commission of offences which are punishable under Chapter XVI or Chapter XVII of
