你不行动是正确的选择多出来的钱你确认是多出来的这个没问题。但是你没办法确认是他转的，所以让他提供初步证明先，他转账，存款，总有相关记录的，时间账户对一下就知道了。 我不确定这事情银行管不管。银行账户转账各种确认信息的，他要是一再点确定转完了账，然后现在跟银行说我脑子坏掉了，银行恐怕也爱莫能助。 但是你如果想故意不给也是不行的，不当得利的话法律还是要管一下的。

我好像也没说警察会管吧。民事纠纷警察明显不管。

法律的事情讲证据但是证据不用铁板钉钉。 民事证据规则是balance of probability。我不需要证明钱真的进了你的账户才能跟你要钱。 我只要证明超过50%的可能性这钱在你的账上，你就得给我吐出来。

你想多了。银行转出的转账记录打印一下5分钟收费最多二十块。这就足够表面证据了。

小额法庭吿起来蛮容易的我告过，赢了

楼主想多了。你不把那笔钱转移/花了是没有问题的，别被法盲乱舞剑吓倒。I have transferred money to the wrong account. How do I attempt to recover the funds? You may follow the below steps: Step 1: Record the account number of the wrong recipient that you have set up. After you have recorded it down, delete this recipient from your list of recipients. Step 2: Proceed to the nearest branch immediately to sign a form in order to recover your funds. Please provide our staff at the branch with the following information: Date of transaction The account number from which the funds were debited from The wrong account number to which funds were transferred to The name of the bank and the branch the funds were transferred to The transaction amount The transaction reference number (if available) We will then attempt to help you retrieve the funds which were transferred to the wrong account. Source: https://www.posb.com.sg/personal/ibanking/faq/funds-transfer-3rdparty.page