New Delhi, Sep 10 (IANS): The Delhi Police Saturday found a switch-like device that could have been used to trigger the Delhi High Court bomb.
"We have found a device that looks something like a switch," Delhi Police chief B.K. Gupta told reporters.
He said police are verifying whether the attacker used a "timer or a remote" to detonate the bomb.
The police has also asked around 700 hotels in the capital to submit closed-circuit television (CCTV) footage of the last ten days.
The commissioner has also written to the railways to adopt various safety measures and monitor CCTV cameras.
A bomb blast outside the Delhi High Court Wednesday killed 13 people and injured more than 90.