There's belief an increased police presence in Christchurch's CBD is a win for all.

Police have launched their Community Beat Teams, which will have up to 18 new and experienced officers patrolling the garden city's commercial areas.

Business Canterbury Chief Executive Leeann Watson says it acts as a deterrent for trouble-makers and helps those coming into the city feel secure.

"For tourists, it provides a level of comfort and assurance - and it also helps the business owners and operators know that there's some extra support there for them."

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