Union Minister for Science and Technology Kapil Sibal's recent suggestion to use satellite imagery to detect illegal constructions and unauthorised buildings might not be an effective solution to the serious menace that has afflicted the Capital for decades. Mr. Sibal's announcement that satellite imagery would help in detection of illegal constructions and unauthorised buildings across the Capital has come as a surprise to many and is being seen as something that is not practical. Even more surprising, the core group formed by AICC general secretary in-charge Delhi, Ashok Gehlot to monitor the ongoing demolition drive has taken upon itself the role of a technical committee that is yet to be formally announced and notified by Union Urban Development Ministry.