A man released on bail was arrested by the shadow wing of the City Police on charge of making a threat call to a police official.

Abdul Salam, also known as ‘Cheenkanni’ Salam, was arrested a month ago near Cheranallore on charge of illegal sand mining in a joint operation by the shadow police and Cheranallore police. His brother Shamsudeen and their aide Rajiv were also arrested and released on bail.

It is alleged that Salam called up a police officer of the squad that arrested him and threatened him. On the basis of a complaint lodged by the police officer, he was arrested on Thursday.

Salam is an accused in a murder attempt case registered in Kalamassery police station in 2009.

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