If the circumstances are serious, he shall be sentenced to life imprisonment or death.

情节特别严重的，处无期徒刑或者死刑。

youdao

If the circumstances are especially serious, the offender shall be sentenced to life imprisonment or death.

情节特别严重的，处无期徒刑或者死刑。

youdao

If the circumstances are especially serious, the offender shall be sentenced to life imprisonment, and concurrently be sentenced to confiscation of property.

情节特别严重的，处无期徒刑，并处没收财产。

youdao

If convicted, the physicist can be sentenced to life imprisonment for the most serious offences.

BBC: Scientist faces nuclear charges

Someone sentenced to life imprisonment, as you will be, will have no guarantee of release once the minimum term has passed.

BBC: Sentencing remarks on Stuart Hazell from Mr Justice Nicol