43In the present case, so far as concerns the refusal of a worker such as Ms Achbita to give up wearing an Islamic headscarf when carrying out her professional duties for G4S customers, it is for the referring court to ascertain whether, taking into account the inherent constraints to which the undertaking is subject, and without G4S being required to take on an additional burden, it would have been possible for G4S, faced with such a refusal, to offer her a post not involving any visual contact with those customers, instead of dismissing her. It is for the referring court, having regard to all the material in the file, to take into account the interests involved in the case and to limit the restrictions on the freedoms concerned to what is strictly necessary.
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