言い分が食い違うので、当事者を突き合わせることにした。
Since their stories didn't match, we decided to bring the parties face to face.
刑事は二人の容疑者を突き合わせて問いただした。
The detective confronted the two suspects with each other and questioned them.
本人同士を突き合わせれば、どちらが正しいかはっきりするだろう。
If we put the two of them face to face, it should become clear who is right.