I'm actually attending WSU in the fall to get my MA in Criminal Justice & Criminology. There are "minimum requirements" that you have to meet when you apply to program. Mine had a minimum GPA of 3.5 and satisfactory scores on the GRE (I believe once you went into the application there was a 160 minimum but I can't remember). I had 140's for the verbal and quantitative sections. I took the GRE twice and only improved to 150Q and 155V.
The way it was explained to me was that they (admissions panel) consider you as a whole and weighting different aspects more heavily than others. My GPA (3.7) and letters of recommendation outweighed my low GRE scores and lack of experience in the CrmJ field. But as MA students, I'm not quite sure how much experience you "should have" when applying.
PhD students, however, must have higher GRE scores. My program director told me that they give MA students more leeway in GRE scores. PhD students are expected to have relatively high scores. Basically, if I want to get my PhD (which is a strong possibility) I will have to retake the GRE.