<p>The Cambodian government&rsquo;s three-year long &ldquo;war on drugs&rdquo; campaign has fuelled a rising tide of human rights abuses, dangerously overfilled detention facilities and led to an alarming public health situation &ndash; even more so as the COVID-19 pandemic unfolds &ndash; while failing in its stated objective of curbing drug use, a new investigative report by Amnesty International published today reveals.</p>