LOS ANGELES (CBS) — A knife that was found buried on the property of O.J. Simpson will undergo a series of tests for DNA evidence, officials said Friday.

CBS Los Angeles reported a construction worker found a folding buck knife buried on the perimeter of the former Simpson estate when the house was being demolished years ago and gave it to a Los Angeles Police motor officer who had retired from the force in the mid-90s.

The retired officer was in uniform while working across the street as security detail for a movie set, according Officer Andy Neiman.

In January, the officer told a friend in LAPD’s robbery homicide division about the knife. Supervisors then retrieved the weapon.

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