TACOMA, Wash. (AP) - A Spanaway man accused of having sex with a dog is apparently the first person in the Washington charged under a new bestiality law. Pierce County prosecutors say 26-year-old Michael Patrick McPhail was caught by his wife on Wednesday night having intercourse on the back porch with their four-year-old female pit bull terrier. The wife took photos with a cell phone and called police. Pierce County sheriff's spokesman Ed Troyer says "There's pretty clear proof what happened to this dog." McPhail was arrested that night. He is held on 300-thousand dollars bail and is reportedly on suicide watch in the jail in Tacoma. Charged with animal cruelty, he could be sentenced to a year in jail if convicted. The bestiality law took effect in June. It was prompted by an incident in Enumclaw where a man died after having sex with a horse.