Not sure it falls foul of broader laws, but it almost certainly breaches your employment contract, which likely includes something about following the policies

Not sure it falls foul of broader laws, but it almost certainly breaches your employment contract, which likely includes something about following the policies of your employer; that policy (in many companies you likely have to go through onboarding training and annual refreshers on it) probably includes a code of employee conduct that has specific mention of conflicts of interest.