The opening pages of the original instructions to the police published in 1829 have a number of annotations which may have been done by Rowan or indeed Peel himself. The first correction is to change provisional instructions to general instructions , with the note on the opposite page reading "why provisional?"

The correction at the bottom of the first page inserts the word principal in front of the phrase " the object to be attained is the prevention of crime". The notes on the opposite page read "crime will be committed in spite of us and then we must detect and punish it".