VIJAYAWADA: After successfully being used as a vital identification tool in the issuance of ration cards and voter ID cards, the Iris technology is all set to capture the profile of the history-sheeters in Vijayawada.

Sources in the Police department said that a complete database consisting of the individual profiles of all the history-sheeters, who have been categorised, would be filed, complete with fingerprints and iris-imaging at the AntiGunda Squad unit.

‘‘The data base would help us in crime investigation and in keeping a close watch on the history sheeters,’’ Commissioner of Police CV Anand said.

A day after the review of existing historysheets under the city police commissionerate limits, the police launched into the exercise of categorisation of the history sheeters. The 256 history sheeters present at the review meet yesterday, have now been categorised into five different categories, based on their inputs of their criminal record and the threat perception from various police stations.

Now that the process of identification and categorisation is complete, the police will keep a hawk eye on the activities of history-sheeters. A data base of all existing history-sheeters is being prepared at the Central Detention and Interrogation Cell (CDIC).

Sources said that the complete profile of the history-sheeters with their identification would be captured on the Iris cameras and DNA finger printing technology at the CDIC.

All history-sheeters would be observed of the respective Station House Officers, special branch and the Anti-Gunda Squad sleuths.

Category A consisted of 55 persons, who were considered active and could do pose a threat to the law and order situation. These would be under the direct supervision of the commissioner of police. Of the 55 persons, Penamaluru police station has the highest number of A class history- sheeters(9), followed by Krishna Lanka (7) and Machavaram (6).

Category B 97 history-sheeters, who were considered as not extremely dangerous but still active. They would be under the supervision of respective assistant commissioners of police. Category C has 97 history -sheeters, who were active and indulge in small-time settlements.

They would be under the observation of Inspectors of police, while category D has 80, dormant rowdy-sheeters, who would be under the direct observation of the sub-inspectors.

Category-E, has 27 persons, who were old and feeble. They would be under watch and if found, harmless, their history sheets would be lifted.