The murder of a woman and her mother has prompted a change in the law that will domestic abuse specialists embedded in 999 control rooms across some police forces.
The pilot comes after Raneem Oudeh and her mother Khaola Saleem were murdered by Ms Oudeh's ex-husband Janbaz Tarin. He was jailed for life in December 2018 with a minimum term of 32 years.
On the night she was killed, Ms Oudeh called West Midlands Police four times over safety concerns, and the force had previously responded to 10 domestic abuse incidents linked to the case.
Five officers were disciplined over the failures.
Raneem’s Law was established in memory of Ms Oudeh and Ms Saleem after calls for changes in legislation.