A letter written by the then Joint Commissioner of Police K K Paul to the Commissioner Ajai Raj Sharma suggesting an internal probe against officials who were investigating the Jessica Lal [Images] murder case.

A Delhi court acquitted Manu Sharma, who was accused of murdering model Jessica Lal, and all other accused in the case.

Paul, who is now the Delhi police commissioner, had questioned the intention behind sending empty rounds of bullets fired at the Tamarind Court party for forensic examination when the weapon of offence had not been recovered.

• Complete Coverage: The Jessica Lal murder case

'It is obvious that this complication is more or less self created. Empties should have been sent for comparison/testing only when the weapon had been recovered,' Paul, who conducted an internal inquiry in the investigation on the murder case, said his report to Sharma in 2001.

He also suggested that a separate case of forgery be lodged.

'The original case is of murder at particular time and at a particular venue, the offences which are now being suspected are of a different nature and though have bearing on the original case, they are not related to the venue,' he said.

Paul said, 'There has obviously been a conspiracy between the accused and certain officials which is to be investigated. This is not in direct continuation of the original offence, hence the need for a separate case.'

He also suggested that a change in the investigating agency would draw adverse comment form the media and may not be desirable at this late stage.