On December 12th 2017, HE Mr. Piya Uthayo, Director of Royal Thai Police Academy sent the letter No. NPT0035.74/3190 to the President of PPA, instructing Lieutenant Ninh Khanh Duy, lecturer of Armed Police Department of PPA successfully defended the dissertation and graduated from the Master's program in Public Administration, Security Management at Royal Thai Police Academy. The editorial board of the Portal of PPA would like to publish the full content of the letter: