What is a Unit Victim's Advocate? What does a Unit Victim's Advocate actually do? Why is a Unit Victim's Advocate important?

It has been over a decade since I sat in the classroom to learn about the Unit Victim's Advocate. However, I think defining the term 'Unit Victim's Advocate,' right here and right now, is actually very important. I am sure that there are more people on Rally Point with more up to date information or experience on a Unit Victim's Advocate to define it better than me. I hope they will comment.

The Victim's Advocate is a civilian appendage that law enforcement officers use after a survivor of a violent sexual assault or rape reports the incident to authorities. Victim's advocates are trained to 'build a bridge' with the victim to ensure that support is created, evidence of a crime is collected, and the perpetrator is brought to justice.

I think it is very fair to ask an additional question: what happens when government assumes the role of a Victim's Advocate or assumes the role of a law enforcement officer who may be trained to respond to a survivor of violent sexual assault or rape?