But then what guarantee is there that a pilot will not just simply get a page of entries signed off, then edit at will to make the hours accrued bigger? I would have thought that if the CAA, or any authority, received a logbook full of correction fluid it would have raised suspicions.
Some people have and will continue to go down that route which is blatant forgery. However, if you have any kind of incident/accident which involves investigation no matter how big or small you can bet your bottom dollar that your hours will be investigated as I believe this is standard practice, if you have been found to have forged hours you will be in a whole lot of trouble to put it mildly and have great difficulty in obtaining licences again.