Although it can sometimes appear to be picking on a specific driver I think the red book is a good idea. I know of times in the past when drivers asked the stewards to keep eye on a specific driver for poor driving. That does get relayed to the corners if the stewards feel there is a reason.
Whenever the corner stations call in contact they are asked - "In you opinion what was the cause?" Obviously we can only base our answer on the part of the track we see. We won't know how the two drivers have been interacting in other places around the track that may have led up to the incident at our corner. So it is just our view. I know you drivers understand this is all we can provide. So many times we are not sure if there is contact and don't want to falsely accuse drivers of contact so we won't call in possible contact.
Here's to a great 2013!
Marianne