～になった versus ～された


Consider the following sentences.

  * 警察官が免許を没収した。The police officer seized (my) license.
  * 免許が警察官に没収された。(My) license was confiscated by the police officer.

If I want to use 「免許が没収になった。」, how can I insert 警察官 into it?




You can use [～によって](https://japanese.stackexchange.com/q/37097/5010) and say
免許が警察官によって没収になった. 免許が警察官に没収になった would also be understood, but many people
would say this is clumsy due to the duplication of に.




You can use [～によって](https://japanese.stackexchange.com/q/37097/5010) and say
免許が警察官によって没収になった. 免許が警察官に没収になった would also be understood, but many people
would say this is clumsy due to the duplication of に.

