Reports have emerged that he boarded the plane while under the escort of UAE police.
The self-declared was heard expressing his intention to sue Emirates Airlines for taking him back to Dubai against his will.
Miguna was forced into a Dubai-bound plane by Kenyan authorities on March 28 after he was denied entry into the country.
A court had ordered that he be facilitated to acquire a passport so as to attend hearings.
On Sunday, the lawyer hailed what he termed "the professional and humane side of the United Arab Emirates exhibits itself."
This was after Sheikh Khalid, a senior government official, escorted him to get proper medical tests and treatment.
He accused Kenyan police of "barbaric assault, torture and chemical poisoning."
Courtesy of the Star