R. SUBBIAH, J.

1. All these writ petitions have been filed challenging the orders passed by the Principal District and Sessions Judges of various Districts, transferring the trial of the Sessions Case involving the offences punishable under the Explosive Substances Act to be tried by the Sessions Court for exclusive trial of Bomb Blast Cases, Chennai at Poonamallee and at Coimbatore, as the case may be, by citing the Circular issued by the Registrar General of this Court bearing Roc.No.1999/C/2015/G1 dated 03.04.2017.

2. Among the six writ petitions before us, five writ petitions being Writ Petition (MD) Nos. 19496, 20796, 20863 of 2017 and Writ Petition (MD) Nos. 4155 and 7662 of 2018 were filed before the Madurai Bench of the Madras High Court, Madurai. Writ Petition No. 26938 of 2017 alone was filed before the Principal Bench of this Court. By an administrative order, the Honourable Chief Justice transferred all the writ petitions filed before the Madurai Bench of the Madras High Court, Madurai to the Principal seat. Pursuant to such transfer, this Special Bench was constituted by the Honourable Chief Justice to take up these writ petitions and to dispose of the same on mer