The pair help to build relationships between cultural groups and the police.

Leading Senior Constable Herrech said that in his travels around the globe he had gained a good understanding of how other countries deal with multicultural issues.

"It has shown me how we can do things better. From my point of view we have a pretty good system here.

''We are way ahead of the rest of the world, they are actually coming to us for advice. Of course there are always gaps, but they are quickly rectified."

Having been in the force for 14 years, he said breaking down the barriers was one of the main challenges.

To tackle the problem, Victoria Police hopes to recruit more people from varied backgrounds.

"It is happening. But we need to have some Sudanese and Iraqi people, we need those faces in the police force," Leading Senior Constable Herrech said.

"We need to break down the 'us and them' mentality, and that won't happen until some of their own become police."

Senior Constable Sukkar, the first officer to wear a headscarf on duty, has had to break down her own barriers.

"It wasn't racism, just ignorance or a lack of knowledge. People didn't know how to deal with me, but all they had to do was treat me like anyone else."

She said her message to new migrants was always to interact with the community.

"I always tell them to go out and volunteer, that way they can learn quickly and get more friends. It is about basic interaction with someone, that's when it all happens."