Regulation 10 Entries in field books
Every on-course bookmaker shall, on receipt of a bet, immediately enter in his field book —
the date and amount of the bet;
the event and the contingency which are the subjects of the bet;
in respect of a bet received by telephone the letter “T”;
in respect of an off-course bet the word “OFF”; and
in respect of a bet placed by a bookmaker, the name of that bookmaker.
Every on-course bookmaker shall, immediately after each event, enter in his field book the total amount of off-course bets received by him in respect of that event.
Save as the Commissioners otherwise allow, every on-course bookmaker shall, within 7 days of receiving a bet placed by a bookmaker, enter in his field book the betting duty reference number of that bookmaker.
Save as the Commissioners otherwise allow, all entries in field books shall be made indelibly.