Locus Definition:

Also:

• locum or
• loci.

In Sweet & Maxwell's anonymously-authored, 1960 book Latin for Lawyers, at page 264, this:

"Locus: place."

Locus typically forms part of other Latin maxims or phrases such as:

• Lex loci (the law of a place);
• Lex loci contractus (the law of the place of the contract)
• Lex loci delecti (the place of the wrong);
• Locum tenens (temporarily holding an office);
• Locus criminis (the place of the crime);
• Locus publicus (a public place);
• Locus regit actum (the place where the facts occured);
• Locus sigilli (the place where the seal was apposed);
• Locus standi (legal standing); and
• Ratione loci (by reason of the place).

Or lawyers talk of the locus delicti as the place where a criminal offense was committed or in loco parentis to refer to a person who stands in the place of a parent such as a step-parent in a common law relationship.