>Pick a more secure, authenticated protocol! Yea, but this is the most cost effective and economical solution. Managing encrption/auth keys down to distributin

>Pick a more secure, authenticated protocol! Yea, but this is the most cost effective and economical solution. Managing encrption/auth keys down to distributing it to multiple LEO, FD agencies, and multiple public and private EMS vehicles isn't a simple task and would quickly grow to needing to permanently contract a vendor to manage it which will come at some blood sucking premium. Instead, the good ol' pipe wrench approach works great here, the emergency services get their IR light that any garage in town can install, and anyone that tries to abuse it gets a free fine or prison sentence. Though they aren't going to throw you in prison because you you had IR leds at 14HZ. They will if you used them on a vehicle, pointed at traffic lights because your intent was interference with a traffic control device.