Compare and contrast – the Law vs Tuscon police understanding.
ARS Title 28 – 905 says:
A person shall not open a door on a motor vehicle unless it is reasonably safe to do so and can be done without interfering with the movement of other traffic. A person shall not leave a door open on a side of a motor vehicle exposed to moving traffic for a period of time longer than necessary to load or unload a passenger.
Erik Ryberg, aka the Tuscon Bike Lawyer reviewed a police report of a cyclist who was doored and badly injured:
The officer noted that the cyclist’s inattention was the cause of the collision. The driver, by contrast, was recorded as having “taken no inappropriate action.”