The opposition Congress in Punjab on Monday demanded a CBI probe into the alleged snooping on political leaders and others by the state government and its agencies, especially Punjab Police. In a letter to the chief justice of the Punjab and Haryana High Court, Punjab Congress president Partap Singh Bajwa said a high-level probe should be ordered into the snooping on political adversaries, members of the media and other sections of the society by the Akali Dal government in the state. Bajwa sought the court`s intervention, and said: “Only a comprehensive and impartial investigation would unravel the manner and the extent to which Chief Minister Parkash Singh Badal and Deputy Chief Minister Sukhbir Singh Badal have converted Punjab into a police state by violating the constitution and the law with impunity.”