A more thorough explanation:

Definition: Manu brevi (man-yoo bree-vI) is a Latin term that means "with a short hand." In Roman and civil law, it refers to doing something directly or without a legal warrant on one's own authority.

Examples:

• Traditio brevi manu: In Roman law, this term referred to the transfer of ownership of an item to someone who already had physical control of it. For example, if you borrowed a book from a friend and they decided to give it to you as a gift, they could transfer ownership to you by brevi manu because you already had physical control of the book.
• Constitutum possessorium: This is another Roman law concept that relates to manu brevi. It allowed a person to transfer ownership of an item to someone who did not have physical control of it, but who was entitled to it. For example, if you sold your car to someone but still had possession of it, you could transfer ownership by constitutum possessorium.
• In Scotland, manu brevi was used to describe the performance of an act without the need for legal intervention. For example, a landlord could seize a tenant's belongings for non-payment of rent without going to court.

These examples illustrate how manu brevi can be used to transfer ownership or perform an action without the need for legal intervention or a formal process.