Why was the category of 'criminal tribe' created by law during the colonial period in India? Discuss its implications. (Answer in 150 words)

- Why was the category of 'criminal tribe' created by law during the colonial period in India? Discuss its implications. (Answer in 150 words)
Introduction
The Criminal Tribes Act of 1871 made criminality a property of birth.
Body
1. The colonial reasons for creating the category: Colonial administration rested on the settled cultivator. Nomads, itinerant traders, entertainers and forest communities fell outside that grid and, after 1857, outside surveillance. The thuggee campaigns had set the precedent of policing a community rather than an offender, and the colonial reading of caste as hereditary occupation made hereditary crime plausible.
2. What it did to the communities so labelled: Whole communities were notified by birth. Members were registered, answered roll calls, carried passes, and were confined to settlements under police and missionary supervision. Children were taken to reformatories. No offence had to be proved: suspicion was the statute's working principle.
3. What it left behind after it was gone: The Act was repealed in 1952 and the communities denotified, but state habitual offender laws took its place. The Idate Commission counted these communities in crores, still first suspected, and unevenly placed across the reserved categories.
Conclusion
The category went; the police memory it manufactured did not.