People who kill on-duty emergency service members face mandatory life sentences in Britain

Lissie Harper and her husband Pc Andrew, who was killed in the line of duty (PA)

Offenders who kill an emergency services worker while committing crime will be given mandatory life jail sentences, the British government has announced.

The law change marks the end of a two-year campaign by Lissie Harper after her husband, police officer Andrew Harper, was killed in the line of duty while answering a late-night burglary call.