TOP trainer John Moore last night accused arch-rival Ivan Allan of ''poaching'' after one of his riding boys switched camps. He also hit out at the manner in which the riding boy, former apprentice rider S. M Au-Yeung, was moved. Moore, joint winner of the trainer's championship last season, says: ''It's a question of poaching and I don't think it is right. ''And there was also some duress involved. I have spoken to the Security Department about it. Two of my ex-staff are with Allan and they wanted this riding boy. ''Now, on a technicality, I have lost him - but I am not happy with the situation.'' Stables chief John Jeffs said: ''The riding boy involved asked for a move and then withdrew the request. He was interviewed and the move has taken place.'' The move came about because Moore is down to 49 horses as he awaits delivery of purchases from America while Allan has the full complement of 60 horses. The Jockey Club operate a ratio of riding boys to the number of horses in a stable and Allan's stable was short-staffed when the move was approved. But Moore said: ''It's a technicality. They know I will have more horses very shortly and there are other riding boys and apprentice riders they could have chosen from.'' On the plus side, Moore was pleased to acquire the New Zealand Class Two galloper Survey King, at Derek Cruz's expense. The move follows the horse's failure in the final event last Wednesday at Happy Valley when he finished out of the frame behind Best One. Meanwhile, the Club has pencilled in November 6 as the date for a night meeting at Sha Tin. There is a day meeting currently programmed for that date but the switch to night looks near certain as the Club seek an early chance to test their re-designed floodlights. That chance went on Saturday when the Sha Tin meeting was abandoned through the attentions of Typhoon Dot. The Club are also seeking a date from the Government for a replacement meeting for last Saturday - most likely a weekday night meeting at Happy Valley.