The president of global police group, Interpol, has allegedly gone missing after he went to China.
He was named president of interpol in 2016.
The head of Interpol, Meng Hongwei, has been reported missing by his wife.
China previous year also requested multiple Interpol red notices seeking the arrest of Guo Wengui, a dissident billionaire who had fled to NY while claiming he possessed explosive secrets about the Communist Party leadership.
Interpol's main function is to provide a mechanism for police forces in different countries to notify each other of wanted suspects.
Meng, 64, was elected president of Interpol in November 2016.
While Meng was in charge, China has submitted "red notices" for dissident business executives and figures like the German national Dolkun Isa, the head of the Munich-based World Uighur Congress that represents the Uighur minority in far western China. Interpol's day-to-day operations are overseen by its secretary general.
A person familiar with the investigation into the disappearance said the initial working assumption of Western investigators was that Meng had antagonised Chinese authorities in some way and had been detained as a result.
Mr Meng was last seen leaving for China from Interpol's headquarters in Lyon, southeast France, in late September.
Since Meng continued to hold positions in the security establishment concurrently with his role as Interpol president, that may have placed him under additional pressure.
Xi has also placed a premium on obtaining the return of officials and businesspeople accused of fraud and corruption from overseas, making Meng's position all the more sensitive.