Increasing number of computer crime happens anywhere anytime affecting both developed and developing countries. Surveys and studies related to computer security found that there have been no single technology able to provide total protection on information resources so far. Therefore, post examinations of computer attacks or computer crimes are important and crucial. Computer forensics is an interdisciplinary field of study to deal with investigation of digital evidence to trace the original source of cyber criminals. Unfortunately as a new field, computer forensics still lacks of standardization and consistency. To fill the gap, this study aims at proposing a comprehensive guidelines of computer forensics investigations in developing countries. The results will benefit policy makers, law enforcements as well as security practitioners from academic and industry especially in developing countries.