The police find most criminals (罪犯)

The police find most criminals (罪犯) because somebody tells them who the criminals are. They find other criminals by using science and their computers. When there is a bank robbery (抢劫), the police first look through their computers for the names of the bank robbers that they know about. Then they go and talk to any of these robbers who are not in prison (监狱). They ask them where they were when the robbery happened. If any of these people cannot give a good answer, the police will often use science to find out if one of them is the robber.
Many criminals leave something of themselves at the places of the crimes like a fingerprint or a hair. Or they take something away on their shoes or clothes, like dirt or animal hair. If they leave behind some of their blood or their hair or a piece of skin, it will have their DNA inside it.
Everyone’s DNA is different and their fingerprints are also different. So, if a criminal cuts himself during a robbery or leaves his hair, or even a small piece of skin, scientists can find out what his DNA is. The police can then ask the person they think is the robber to give them his hair or some blood and see if it has the same DNA. Many criminals are in prison today because of this kind of evidences .

結果 (中文) 1:

警方发现大多数罪犯 (关在一起)，因为有人告诉他们的罪犯是谁。他们找到其他罪犯利用科学和他们的电脑。当抢劫一家银行 (抢劫)，警方首先看通过他们的计算机名称的抢劫银行的罪犯是他们知道的。然后他们去和谈谈任何这些强盗不被关进监狱 (监狱)。他们问他们他们在那里的这起抢劫案发生的时候。如果任何这些人不能给一个好的答案，警察经常会用科学来找出如果其中之一是强盗。许多罪犯离开自己的东西像指纹或头发犯罪地点。或者他们把东西带走他们的鞋子或衣服，像灰尘或动物毛发。如果他们留下一些他们的血液或他们的头发或一块皮肤，它将有他们的 DNA 里面。每个人的 DNA 都不同，他们的指纹也不同。所以，如果刑事抢劫时，割伤了自己，或离开他的头发或甚至一小块皮肤，科学家能找出他的 DNA 是什么。警察可以然后问他们认为人是强盗给他们，他的头发或一些血液，看它是否有相同的 DNA。许多罪犯在监狱今天这种证据。

結果 (中文) 3:

警方发现，大多数罪犯（罪犯）因为有人告诉他们谁是罪犯。他们使用科学和他们的计算机找到其他罪犯。当有一个银行抢劫（抢劫），警方首先通过电脑查阅银行的强盗的名字，他们知道。然后他们去跟这些强盗并不在监狱里（监狱）。他们问他们是什么时候发生的抢劫。如果这些人不能给出一个好的答案，警察通常会用科学来找出他们中的一个是强盗，许多罪犯都会把自己的东西在犯罪的地方，如指纹或头发。或者他们把鞋子和衣服上的东西拿走，像泥土或动物的头发。如果他们的血液或头发或皮肤上留下一些，它会有它的基因里面，每个人的基因是不同的，他们的指纹也不同。所以，如果一个罪犯在抢劫或离开自己的头发，或是一小块皮肤，科学家可以找到他的基因是什么。警察可以问他们认为是强盗给他们的头发或血液，看看它是否具有相同的基因。今天有许多罪犯在监狱里，因为这样的证据。