Experts say move to withhold increments from bottom 10 per cent of underperformers will have limited impact, noting over third of staff already reached maximum pay scale.

Civil service to introduce rigorous appraisal system in October, under which bottom 10% of performers to face pay freeze.

Experts say move to withhold increments from bottom 10 per cent of underperformers will have limited impact, noting over third of staff already reached maximum pay scale.