Terry Spence, chairman of the Northern Ireland Police Federation, which represents rank and file officers, said that the "bravery and courage" of the police stood in "stark contrast to that of the cowardly thugs responsible for trying to murder them."
The disorder in North Belfast on Monday came after 47 police officers were injured on Sunday night during riots linked to a republican parade nearby and a loyalist protest.
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Ming Jiang, 43, was heavily in debt and chased by creditors when he murdered his wealthy friend.