No one shall be compelled to confess or to testify against himself or herself Investigatory activities shall be conducted only lawfully and with due cause Neither arbitrary, nor unduly intrusive, investigatory activities shall be permitted Investigations shall be competent, thorough, prompt and impartial Investigations shall serve to identify victims; recover evidence; discover witnesses; discover cause, manner, location and time of crime; and identify and apprehend perpetrators Crime scenes shall be carefully processed, and evidence carefully collected and preserved Human Rights Practice All police officials · · · · Develop standardized procedures for the recording of information during investigations When in doubt about the legality of an investigatory activity, inquire with superiors, where possible, before proceeding Treat all suspects as innocent persons, politely, respectfully and professionally Keep a detailed record of all interviews conducted 11