Senior Hastings Mongrel Mob member Paul Chadwick was jailed for injuring a man after police found vital evidence on his own CCTV system.

Two Mongrel Mob members have been jailed after their own security system recorded them beating a man.

Paul "PC" Chadwick and George "Hori" Taite failed to delete the footage, recorded at Chadwick's house in Flaxmere, Hastings, and police found it four days later.

It was played to a judge at Napier District Court on Monday during the trial of a third man, Michael Howlett.

STUFF The CCTV footage was shown in Napier District Court on Monday in the trial of another man accused of taking part in the beating.

Chadwick, 52, and Taite, 35, were jailed last year after pleading guilty to charges of injuring with intent.

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Howlett, 27, pleaded not guilty to being a party to injuring with intent. Judge Stephen Harrop has reserved his decision after the day-long trial.

LAWRENCE SMITH/FAIRFAX NZ Chadwick and Taite are members of the Hastings chapter of the Mongrel Mob.

The assault occurred on the evening of July 1 last year. The 32-year-old victim arranged for Howlett to drive him and his girlfriend to Napier from Hastings.

But instead of being taken to Napier, they were taken to the home of Chadwick, a senior gang member.

The victim told the court he had not wanted to go anywhere near Chadwick's house, because he knew he would get a hiding. He said Chadwick wanted money to pay for repairs to his car that had been damaged while the victim had borrowed it.

The victim was taken on to the property and told to wait for Chadwick.

Chadwick came out of the house and punched the man in the face. Then Chadwick and Taite punched him numerous times until he lost consciousness and fell to the ground.

While he was down, Chadwick and Taite kicked and stomped his head numerous times – all in full view of Chadwick's CCTV cameras.

The footage showed the assault occurring over a 45-second period, with the pair landing at least 10 powerful punches and kicks.

Howlett looked on, and appeared to support the pair. When the assault was finished, Taite gave the victim a cloth to wipe blood from his face. Chadwick and Taite then took him to the side of the house, so he could use a hose to clean himself.

The footage showed Taite then returning to the site of the assault and using the hose, Janola and a brush to clean up blood left on the floor. While he did this, Chadwick could be seen supervising him while holding a young child.

As the victim waited to be collected from the house, Taite pulled up in a car beside him and told him that, if he went to police, Taite would take to him with a baseball bat.

The victim suffered fractures to his right eye socket, a cut above his eye requiring stitches, swelling and bruising to both eyes and nose, and extensive swelling to his face and jaw.

Taite told police he did not know the victim and knew nothing about the assault. Chadwick refused to comment. Howlett admitted being present, but denied taking part.

Chadwick and Taite were jailed for two years and three months, and two years and seven months respectively.

Judge Harrop said he expected to deliver a verdict in Howlett's case on Tuesday afternoon.