If only life was that simple.
In the uk we cannot just lock someone up,in fact for DV offences we rarely do.
Often by the time the offence actually gets to court things like trapping a woman and her child in there home for hours cutting the phone lines so she cant call for help smashing up her mobile phone threatening to use her wedding dress to burn the house down ( dumping in the room covered in BBQ lighter gel) then when she climbs out of a window chasing her into the street and catching her then beating her until neighbours come out chase you off and take her and the child into their own house to wait for the police.
Gets referred to as criminal damage,assault by beating and results in attending a 8 week probation course a court fine of £150 compensation of £130 ( what bt charge to fix the cut line) and that's it.
And that's if found guilty.
I have clients whose ex's for what ever reason got found not guilty or charges lowered so much its shocking even if you know they did it you can't lock them up.
In the 6 months after the riot hearings loads of violent domestic violence offenders got lower sentences than the woman who sold the stolen shorts. Most were not even custodial.