in (one's) possession

in (one's) possession

Owned, held by, or under the custody of someone. With her father's inheritance in her possession, Samantha intends to start her own business. The detective wanted to know how long the victim's diary had been in the suspect's possession.
See also: possession

*in someone's possession

held by someone; owned by someone. (*Typically: be ~; come [into] ~.) The book is now in my possession. How long has this object been in your possession?
See also: possession