Passing sentence on both men in separate hearings today, the Judge, Mr Justice Fulford said:
This country has long prided itself on the integrity of its public officials and cynical acts of betrayal of that high standard have a profoundly corrosive effect.
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The slump will spark scrutiny, especially as statistics show a rise in racially or religiously motivated offences following the EU vote.
The 53-year-old was killed shortly after leaving her home in Mosta, Prime Minister Joseph Muscat said.
Jordi Sanchez of the Catalan National Assembly and Jordi Cuixart of the Omnium Cultural group were jailed on Monday.