This paper examines the standard of proof applicable in proceedings for imposing pecuniary penalties for violation of competition rules. Australia, New Zealand and the UK have chosen the civil standard. This unfortunately overlooks the safeguards required by the relevant human rights treaties in proceedings that involve the determination of a ‘criminal charge’. Conversely, Hong Kong has adopted the criminal standard, which may prove unworkable in these proceedings in which economic analysis is key. After analysing whether one may set this quagmire aside by asserting that these proceedings do not involve the determination of a criminal charge, it will be argued that the more plausible solution is to accept the criminal charge characterisation, limit the civil standard to the effects-based elements of the charge and apply the criminal standard to other elements. This will achieve a permissible proportionate derogation from the human rights safeguards. Similar bifurcated models have been adopted for charges such as public nuisance and harassment, and have successfully withstood human rights challenges.