in propria persona

Adverb

By the person themself; often used when a defendant is representing themself in court without an attorney.

Japanese Meaning

弁護士などの代理人を立てず、本人が自ら法廷で自己弁護すること / 本人自身が自分を代表し、直接行動すること

The motion was filed in propria persona.

その申立ては本人自ら提出された。

Sense（1）

By the person themself; often used when a defendant is representing themself in court without an attorney.