The Economic Offences Unit of Bihar Police has obtained NEET reference question papers to compare these with documents recovered during a search operation last month from a flat here and is also exploring the "possibility of conducting narco analysis and brain mapping tests" of accused in the case, sources said on Saturday.

They also indicated that the Enforcement Directorate might investigate the money laundering aspect of the alleged irregularities in the medical entrance examination -the National Eligibility-cum-Entrance Test (Undergraduate) or NEET, conducted by the National Testing Agency in May.

"We had requested the NTA for the reference question papers after we began the probe last month. Finally, they did the needful. We will tally these papers with partially burnt papers seized from a Patna flat last month. This exercise is likely to be done before a forensic examination of such documents," an EOU source said.

Top officials of the EOU are likely to visit Delhi on Saturday to "discuss certain aspects of the ongoing probe with the senior officials of the Union Education Ministry and other concerned wings", he said.

"Based on EOU’s FIR, the Enforcement Directorate may probe the matter under the relevant sections of the Prevention of Money Laundering Act (PMLA). The central agency is expected to identify proceeds of crime and initiate proceedings to attach properties belonging to the accused or suspects," said another source of the Economic Offences Unit.

Commenting on this, Abhayanand, former director general of police (DGP), Bihar, told PTI, “There is no doubt that grave offences have been committed in the NEET-UG 2024 exam. Prima facie, it appears that the paper was leaked…evidence collected so far is also suggestive of the paper leak. The case must be probed under the provisions of the PMLA as black money is involved in it." It is also learnt that certain arrested accused in the case are "providing conflicting statements or changing their statements during interrogation", the EOU sources said.

"Investigators are not satisfied with the statements of certain accused. Although they have been questioned several times, their replies are not convincing. Now officials are contemplating conducting brain mapping and narco-analysis tests. These scientific tests may provide certain fresh leads to investigators," one of the EOU sources said.

The EOU, which is probing the alleged NEET-UG paper leak case, last month arrested 13 people as part of its investigation into the alleged paper leak in the NEET-UG 2024 exam.

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