Police will allege the 36-year-old Harrison man was behind the wheel of a ute that hit the two victims as they walked home through Braddon after a night of partying in Civic in February. The collisions left Navjot Sekhon and Kyah ''Burma'' Han in hospital, with Mr Han suffering critical injuries, including broken vertebrae in his neck, one in his spine, and possible brain damage.

He was airlifted to a Sydney hospital for specialist care.

Mr Sekhon was released from the Canberra Hospital a short time after being hit, suffering only minor injuries.

CCTV footage shows the ute being driven along Henty Street in Braddon, apparently looking for the pair, who were hidden from view.

The ute is then seen to double back, approach from behind, and then plough into the two teenagers.

Police say it appeared to accelerate seconds before impact.

The driver fled the scene without stopping.

But subsequent media coverage of the incident, including reports of the injuries sustained by Mr Han, prompted a man to hand himself in to police days later.

Police found a ute matching the description at his home, and put it through testing.

Six months after the hit-run, police have summonsed the man to court to face a charge of culpable driving causing grievous bodily harm.

He is expected in the ACT Magistrates Court on September 5 and could face a maximum of 10 years' jail if later convicted.

Mr Han recovered remarkably after the hit-run, amazing friends and family by waking from a coma on his birthday.

He had shown significant progress in the months following the incident, and is understood to have been released from hospital earlier this year.

Investigators were waiting on forensic and medical reports last month, before they could formally issue the summons on the culpable driving causing grievous bodily harm charge.

Mr Sekhon previously told Fairfax Media he did not know who the driver was, or why he may have targeted him and Mr Han.

No motive for the hit-run has been publicly suggested.