Well your AI response is wrong on all points ! However you have not posted the PCN yet, which is a key document that we must see
1) The PCN only states the location as the road I turned left from It says that the PCN should specify the three roads leading into the junction and the main road should be the one I turned into - which created the offence - not the one out of which I turned (ie the one stated on the PCN).
Wrong. All that is needed is sufficient location information to inform the PCN recipient where the alleged contravention occurred
2) The PCN evidence portal only shows four still images. However Google AI states they should have also posted a video and that without this the PCN becomes invalid.
Wrong. There is no legal requirement to advise of a video. However there will be a video that can normally be viewed on the council website by quoting PCN Number and vehicle registration. The PCN will tell you.The exception is Transport for London who only supply DVDs on request.
3) Although the PCN arrived within the 14-day period, it only arrive with two days to spare and google says this is "Procedural Defect" as it severely truncated the time available to me to research my defence.
Wrong. The law is that the PCN must be posted by 1st Class post on the day it is printed, and must be sent within 28 days from date of alleged contravention. Post delays are not the responsibility of the enforcing authority, but as I said, we have yet to see the PCN, and the legislation under which it was served.
So, PCN please and your narrative on why it was served. ALso a GSV link to the location is extremely helpful.