The primary basis for restraining a solicitor's firm from acting against a former client remains the protection of confidential information under the Prince Jefri Bolkiah test. However, in exceptional cases, a broader duty of loyalty may independently justify restraint where the solicitor-client relationship had qualities beyond the mere reposal of confidential information. Where only one individual in a firm possesses confidential information and undertakings are given, the full Chinese wall requirements from Prince Jefri Bolkiah may not be necessary.
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