Raju: On statement alone that if footages are not preserved, the petitions are to be dismissed. There are videos showing police was injured. Its a well known fact that in so called peaceful demonstrations there are instances where such demonstrations are hijacked by others. So called peaceful agitation did not remain peaceful. Damage was caused to police vehicles. Policemen were injured. FIR is also filed where crowd became unruly. The police then has to act if violence is there.