The Home Ministry had demanded "case diary" and Superintendent of Police's final report before deciding to give sanction to prosecute the IB officers.
CBI sources said the agency has handed over necessary documents to Home Ministry officials including "statements of the accused, statements of the witnesses and other documents relied upon during the case".
The sources said the agency has, however, refused to share these documents with the Gujarat government.
Home Ministry sources had said the ministry had sought certain documents from CBI saying no sanction will be accorded without proper application of mind for which material available on record is required.
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Under the provision of Section 172 CrPC, every police officer conducting an investigation maintains a record of the probe done on each day in a case diary in a prescribed format.
These diaries are important record of investigation carried out by an investigating officer. Any court may send for the case diary of a case under inquiry or trial in such court and may use such diaries, not as evidence in the case, but to aid it in such inquiry or trial.