1. Preferred arrest policy laws include Ark. Code Ann. 16-81-113;Cal. Penal Code 836; Fla. Stat. Ann. 741.29 (4)(b); Mass. Gen. Laws Ann. ch. 209A 6; Mich. Stat. Ann. 28.874 (1), 28.1274(3); Mont. Code Ann. 46-6-311 (2)(a); N.D. Cent. Code 14-07.1-10; Tenn. Code Ann. 36-3-619. Ohio Rev. Code Ann. 2935.03 (B)(3)(b) provides for a preferred arrest policy when there is "reasonable grounds" to arrest; however, when there is probable cause to arrest, arrest is mandatory. N.H. Rev. Stat. Ann. 173-B:9 is ambiguous in directing that an officer "should" arrest the primary aggressor in the context of a discretionary arrest directive for domestic violence generally.