A day after Amritpal Singh and his followers broke through police barricades with guns and swords and stormed the Ajnala police station, Punjab DGP Gaurav Yadav on Friday said demonstrators had used the holy Guru Granth Sahib as a shield and attacked police personnel in a cowardly manner, leaving six of them injured. “Police acted with utmost restraint due to the maryada of Guru Granth Sahib and preserved it. Had police opened fire, it would have led to more issues. We have acted with restraint on account of the presence of the holy Guru Granth Sahib,” he added.