Pointing a laser at an aircraft causes distraction or temporary flash blindness to a pilot, during a critical phase of flight such as landing or takeoff. It is a criminal offence and has resulted in arrests, trials and jail sentences. It also results in calls to license or ban laser pointers. If you notice any unauthorised laser usage directed at aircraft you should report it to Police. Thankyou.
The video below shows the effects on pilots from the unauthorised use of laser pointers directed at aircraft.