Prayuth Chan-Ocha remains in office after acquittal by Thailand's highest court

But anti-government protesters have vowed to return to streets of Bangkok if Prayuth Chan-o-cha does

Protests held on school, university campuses in Bangkok and other cities

The scandal broke in the French media just three months before the country's 2017 presidential elect

Court upholds his decree for the nomination

Allegation could have seen high-profile party banned in one of several ongoing cases against it