The territory it involved had been given to one side by the Treaty of Tianjin and Treaty of Nanking, and a 99 year lease began in 1898.
Negotiations regarding this event would begin as early as 1979 with Murray MacLehose, and one side would refuse to recognize the so called "Unequal Treaties" that had been signed over a hundred years earlier.  Governor Chris Patten would give up his position to be replaced by Tung Chee-hwa while Elsie Leung, the new justice minister, warned that pro-democracy protestors could potentially be arrested. The territory it involved had been given to one side by the Treaty of Tianjin and Treaty of Nanking, and a 99 year lease began in 1898. FTP, identify this 1997 event that saw Great Britain transfer one of its colonial territories back to China.
Negotiations regarding this event would begin as early as 1979 with Murray MacLehose, and one side would refuse to recognize the so called "Unequal Treaties" that had been signed over a hundred years earlier.  
{Hong Kong} Handover (accept any clear knowledge equivalent)