Emergency vehicles equipped with blue light & siren warning systems only an advanced driver is allowed as they have to be trained to engage in pursuits (Google 'Police Pursuit Policy)
If public fit them to their vehicles and are using them driving on the public highway they are committing the offence of impersonating an emergency vehicle
You, as a member of public, can actually buy emergency warning systems (blue beacons and audible sirens) from companies such as Haztech; Legal to purchase but illegal to use in motion on the public highway
If public fit them to their vehicles and are using them driving on the public highway they are committing the offence of impersonating an emergency vehicle
You, as a member of public, can actually buy emergency warning systems (blue beacons and audible sirens) from companies such as Haztech; Legal to purchase but illegal to use in motion on the public highway