Aditya Shrivastav, who portrays Senior Inspector Abhijeet, was introduced in the show as a criminal but was later added into the CID team.
The major shoot in Paris-Switzerland was for the 2 hourly special episode "Aakhri Chunauti", and a part of the production team's 13th anniversary celebration plan.
The 111th episode named CID 111 had actually a duration of 111 minutes and was a continuous shot episode. It was even registered in Guinness Book of Records.
After completion of 1000 episodes, a special episode was made. The duration of this episode is about 4 hours.
Beginning on July 7, 2006; a nationwide hunt called Operation Talaash was launched, in search of a new officer to join the CID team, which ended on September 1, 2006. Vivek V. Mashru who played Sub-Inspector Vivek, was selected to play the role.