Disabled adults and families with disabled children are challenging the legality of the Government's so-called "bedroom tax", arguing that it unlawfully discriminates against them.
Lawyers in 10 cases at London's High Court are seeking a ruling that the regulations, introduced on 1st April, "unjustifiably discriminate against housing benefit claimants who are disabled or care for disabled family members".
Outside court protesters gathered in support of the families.
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A report published by the Boundary Commission for England details plans to reduce the number of MPs by scrapping 50 constituencies.
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.