彼は詐欺罪で有罪となり、翌月入監した。
He was convicted of fraud and went to prison the following month.
入監の際には所持品をすべて預けなければならない。
On entering prison, you must hand over all your belongings.
その元社長は入監前に記者会見を開いた。
The former company president held a press conference before going to prison.