Thieves drilled into the wall of a jewellery shop located at Ansari Marg, near Kotwali Police Station on Sunday night. With the Vidhan Sabha Session on, police are supposed to be on high alert in the city. However, it has failed to stop burglary in a jewellery shop located at a stone throw distance from a police station. The Kotwali police station in-charge inspector SS Bisht said that unidentified thieves had drilled into the wall of a small jewellery shop from the side of drainage and decamped with jewellery and thousands of rupees in cash.