For fair assessment of answer scripts, teachers in many schools in the country are practicing group evaluation. It is evident from various facebook updates and calls from fellow teachers elsewhere in other schools. It's a good move for schools in Bhutan. Unlike single teacher evaluation, group evaluation gives no room for biased assessment.
In my school teachers form groups in their respective subject department. To make assessment even fairer my school has given index numbers to all students. Writing index numbers instead of names facilitates fair assessment, in that it prevents teachers from the likelihood of awarding extra marks to their favorite students and low marks to those they don't like. We are more or less emulating BCSEA's way of doing assessment.
Although long and tiring, there is fun in doing group evaluation. We get to eat variety of refreshments. Teachers take turns to serve refreshment to the group. Each day there is something new to eat and there is a competition about who would bring the best refreshment. It is also a time to talk about a range of issue from government's lopsided pay raise; to how it would affect village folks; to world cup; to how teachers' pay does not commensurate with their work; to soap opera; to fashion celebrities; to the rocketing price of commodities in the market; etc. Another good thing about group evaluation is that teachers can spend their summer break freely. Normally teachers do assessment during the break but group evaluation finishes everything before the break and leaves no outstanding work.