Think about it. Their investigation will be challenged for years and years. Before it is conclusive, they'll be fatigued, leaders will be changed. No one will care about it.I have a different perspective to this. The guy that got shot, is he a good guy? Absolutely not. He betrayed his own country, cheated his way to Canada, and got Canadian citizenship. Did India have the right to execute him? Nope, but he would have been killed had he been in India where law can be bought by money. But India allegedly killed him on a foreign soil. If India gets away, then there will be another murder by India. If there is solid evidence, G7 will not stay quiet and will question India. All the talks about investigation bias will mean nothing when the heat is on India. But, if there is no evidence, then JT truly fked Canada and more importantly his political future.
They butchered Jamal Khashogi in an embassy. G7 stayed quiet. It is nuanced how differently they'll treat MBS vs India, but I think the consequences are not going to be any significant.