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The Protection Battered Spouses Don’t Need
TWO decades ago, in an effort to curb domestic violence, states began passing “mandatory arrest” laws. Police officers responding to a call for help would no longer need to determine whether one person was truly violent or out of control; every time someone reported abuse, the police would simply be required to make an arrest.

It seemed like a good tactic — at least to people who work with victims of domestic violence. (Police officers tended to be less enthusiastic, because they prefer to make arrests at their own discretion.) Arrests would immediately stop the violence and might discourage abusers from further acts of abuse.

But 20 years later, it seems the mandatory arrest laws are having an unintended, deadly side effect. The number of murders committed by intimate partners is now significantly higher in states with mandatory arrest laws than it is in other states.

Support for the laws began in 1984, after a federal district court in Connecticut ruled that the police had inadequately protected a woman whose husband had brutally assaulted her. State lawmakers decided they needed more control over how local police departments enforced restraining orders against abusers and intervened in incidents of violence. One way to get that control was to dictate how the police should respond in each case.

A small but influential study of police responses to domestic violence calls, conducted by criminologists in Minnesota in the early 1980s, found that arrests were the most effective strategy for reducing future violence. Now, 22 states and the District of Columbia have laws that mandate or at least strongly recommend that everyone accused of domestic abuse be arrested.

What the laws did not take into account was that eventually the victims of violence would come to realize that if they called the police, their abuser would certainly be arrested. And over the years, it turns out, that realization seems to have led victims to contact the police less....