但是根据一项最新研究，他们可能（在作案时）也想带上洗手液（保持手部干净）了，因为这项研究发现了一种通过皮肤细菌指认罪犯的新方法。

But they might want to carry hand sanitizer, too, according to a new study that suggests a new way to finger perpetrators from their skin bacteria.

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作案者往往通过漏扫商品或键入错误单价的方法作案，他们也能绕过条码转换装置，小偷们往往将原有的条码撕掉，而换上一件便宜商品的条码。

It also overcomes bar-code switching, in which would-be thieves remove the original bar-code and replace it with that of a cheaper item.

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可以肯定地说，改变策略，方法，作案手法和一切依赖于最根本的东西。

Definitely, the change in strategy, approach, modus operandi and everything else is dependent on the most fundamental thing.

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