Sui Juris Legal Definition:

Latin: one's own law; having full capacity.

Related Terms: Alieni juris

Thomas Tayler's 1858 dictionary renders the translation of sui juris as:

"... of his own right".

A person sui juris is one who possesses full civil rights and is not under any legal incapacity.

Most adults are sui juris.

The counterpart of sui juris in Roman law is alieni juris.

In the 1955 version of the Dower Act of the Canadian Province of Alberta;

ยง27. This act applies to all married persons whether or not they have attained the age of twenty-one years, and for the purposes of this Act and every matter or thing done under or by virtue of its provisions, a married person of whatever age shall be deemed to be sui juris."

REFERENCES:

  • Dower Act, 1955 R.S.A., Chapter 90.
  • Tayler, Thomas, The Law Glossary (New York: Lewis & Blood, 1858), page 504

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