All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means; electronic, electrostatic, magnetic tape, mechanical, photocopying, recording or otherwise, without the prior permission of the Croquet Association.

(a) A player is not entitled to receive advice from anyone, except his partner in doubles play, and should not take advantage of unsolicited information or advice.

(b) The adversary must not warn the striker that he is about to run a wrong hoop or, unless Law 28(a) will apply, that he is about to play a wrong ball. In a double-banked game, playing with a ball of the other game does not constitute playing a wrong ball and the adversary should forestall play.

(c) The striker may not make use of technical assistance from books or notes or artificial aids such as coins to assist him in placing a ball for a stroke, except in connection with its replacement under Laws 23 or 24.

(d) No mark or marker may be made or placed inside or outside the court to assist the striker in gauging the strength or direction of a stroke.

(e) During a game a ball may not be used as a trial ball for any purpose.