what is law?

KATHMANDU, JAN 10 - TRIAL, a Swiss organisation working against impunity, has urged the government to collaborate with the UK government on ongoing investigations into Nepal Army Col Kumar Lama, who has been charged with acts of torture committed during the armed conflict.
Lauding the arrest of Col Lama in the UK, TRIAL appealed to the Nepal government to stand in solidarity with victims of the conflict by cooperating with his prosecution. Col Lama was arrested last week in the UK under Section 134 of the Criminal Justice Act, which defines torture as a crime having “universal jurisdiction”.
“The arrest of Col Lama in the UK is fully in line with international law and is the natural consequence of the government of Nepal’s failure to investigate and bring to book those responsible for committing serious human rights violations during the conflict,” said TRIAL in a statement on Thursday. 
TRIAL also criticised senior members of the government who deemed Lama’s UK arrest “an attack on the nation’s sovereignty” and demanded his immediate release. According to the Swiss organisation, such statements from Nepali authorities disregard the country’s international obligations to prosecute or extradite those guilty of human rights violations.
Meanwhile, THRD Alliance, another human rights organisation, also commended the UK government for Col Lama’s arrest. 
“The arrest certainly does not breach the nation’s sovereignty as claimed by the political parties,” the Alliance said in a statement. “It is rather related to rule of law, which the government doesn’t seem to be very serious about.”
Justifying Col Lama’s arrest, the Alliance pointed to the government’s failure to form vital transitional justice mechanisms—the Truth and Reconciliation Commission and the Commission for the Disappeared—as agreed to by the political parties in the Comprehensive Peace Accord, a deal signed at the beginning of the peace process in 2006.
“The lack of political will to book perpetrators of serious human rights violations is very obvious in the Nepali political arena,” read the statement. “We [the Alliance] urge the government to cooperate with the British police for a fair trial.”