
Belt and braces
Redundancy Intended
Implying extra precautions were taken even though they might seem unnecessary.

Although the alarm was set, he followed a belt and braces method by also having a guard dog.
British Origin
It's a British expression, so be aware it may not be understood globally.

Our UK team prefers a belt and braces policy to avoid any risks.
Primarily Formal
Better suited for formal or business contexts where precision is valued.

The engineer recommended a belt and braces check of the system before launch.
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