State Article of Universal Declaration of Human Rights.
Article 9 - 'No one shall be subjected to arbitrary arrest, detention or exile.' - The reason this is so important is because arrest actually denies a person their right to freedom; therefore, it should not be exercised arbitrarily. There should be sufficient systemic safeguards in place as well as good reason to warrant the detention/arrest. The Criminal Justice System provides ample opportunities for this.
Article 10 - 'Everyone is entitled to a fair and public hearing by an independent and impartial tribunal, in the determination of his rights and obligations and of any criminal charge against him.' - Tribunals must conduct themselves fairly and equally.