More than four years after the death of Ottawa's Abdirahman Abdi, the judge will deliver his decision on the officer facing manslaughter charges.

After a two-month break, Crown prosecutors on Monday formally closed their case against Montsion, who has pleaded not guilty to manslaughter in the 2016 death of Abdirahman Abdi.

Const. Daniel Montsion's lawyers filed a charter application asking the judge to effectively stop the trial or, alternatively, exclude key video evidence from the proceedings.

A witness who interacted with Abdirahman Abdi at the Hintonburg Community Centre on July 24, 2016 told the court Abdi was "incomprehensible" but was never violent during their exchange.

Just three days in, the high-profile trial has been adjourned until Feb. 25 after the defence raised concerns about a recently disclosed copy of CCTV video that was allegedly "altered" and shown to the pathologist in Abdirahman Abdi's case.