True provided that an accurate transfer of the information therein takes place. However, if asked to produce logbooks within 2 years of doing such a transfer, the original logbook that was copied would need to be produced as well.
I can not see why any instructor would "deface" or write all over a log book in red ink.
Where we keep student records, then they satisfy the requirement for keeping a record of what was done on the flight etc. However, in cases where no student record is retained eg checkout, then the instructor should record when the checkout is completed. This actually protects the logbook holder as the instructor can not later claim that there was further training recomended.
Any logbook holder is entitled to sue an instructor who makes false statements in their logbook which could affect their employment prospects.
Regards,
DFC
You always do such wordy climb downs.....