Teenager shouted abuse and held knife to partners throat.
When a Grimsby teenagers partner arrived home five minutes later than the curfew he had set for her he shouted abuse and held a knife to her throat.
He held a knife to his 18 year old partners throat while pinning her to a wall and she was terrified.
Liam Werrett 19 was convicted to two offences of assault on his partner.
He appeared on video link from Hull prison at Grimsby Magistrate Court he was locked up for 26 weeks in total. A two year restraining order was also imposed he has been ordered not to contact the girl.
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