<human>: Basically my fiance and I work for the same company, after the Christmas party a couple of days ago I went home as she was going out with a couple of the girls. This normally happens as I have a phobia of clubs/ crowded places. 

Anyways a couple of the guys that work in our warehouse followed the girls, after the night was over my girlfriend went to tell the warehouse manager that she was going (so he didn't panic when she disappeared) and he grabbed her arm and pulled her close, he started touching her bottom and trying to kiss her neck. She kept telling him to stop as she has a fiance and was not interested, he turned around and sated "what am I going to get burned". He then proceded to try and follow her into the taxi as she was coming home.

My questions is: As her fiance what can I do to help/ report this? Who do I see?

I am living in Australia if that matters btw.

Thanks heaps guys :)

Can you condense the text into a few key points?
<bot>: Girlfriend goes out after christmas party, Warehouse manager touches her bottoms and tries to kiss her after repeatedly told NO. What do I do as her boyfriend?