TPPA Action Whanganui members Tracey Treadwell, Denise Lockett and Christine Cooper say they were hit by Whanganui MP Chester Borrows' car as they were holding placards protesting the signing of the TPPA.

Former police officer and National MP Chester Borrows says he wouldn't be surprised if he's charged over allegations he drove into protesters and is confident he'd defend it.

Borrows, MP for Whanganui, is currently being investigated by Crown Law after two women protesting over the Trans-Pacific Partnership Agreement (TPPA) complained to police they had been hit by his car during an incident in Whanganui on March 22.

Tracey Treadwell and Denise Lockett were both taken to Whanganui Hospital for X-rays, which showed no broken bones.



Borrows said under the Land Transport Act, Crown Law, had six months to make a decision.

Lauren Hayes Police have until September 22 to charge Whanganui MP Chester Borrows over an incident involving protesters.

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"There's far more chance of me getting charged by it going to Crown Law I'd say than if they made the decision locally."

Warwick Smith Representing TPPA Action Whanganui, from left; Tracey Treadwell, Denise Lockett and Christine Cooper. Tracey and Denise, while protesting against the TPPA signing, were allegedly struck by a car driven by Whanganui MP Chester Borrows .

"It wouldn't surprise me at all if something came back and said I was going to be warned or charged and then I'd have to decide what I did with that, whether I accepted the warning or defended the charge, and at the moment I think I'd defend it pretty well," he said.

Video footage of the incident shows the protesters crowding around a car being slowly driven out of a drive way by Borrows, who had Social Housing Minister Paula Bennett as a passenger.

At the time Prime Minister John Key described Borrows as a "very gentle person" and Bennett said "Chester slowed right down and was inching forward".

On Saturday Borrows had his car parked outside the National Party Conference in Palmerston North and said protesters attended the event, including those who have made allegations against him.

"As soon as I got in the car to reverse they all rushed to get behind the car and block me - so there you go."

"Cops had to physically move them out of the road."

Borrows said he had been accused of getting special treatment on social media but the fact Crown Law was dealing with the investigation proved the exact opposite.

"A decision to charge someone would normally be made by a traffic cop at the scene but because they want to make sure it's completely independent and fully backed up they sent if off to Crown Law."

In an opinion piece on Stuff.co.nz on Monday Borrows referred to having "made decisions last week that I wouldn't make a second time".

"We have all made mistakes and I own mine but don't want them thrown in my face every time I am in need of being cut a little slack," he wrote.

When questioned whether he was referring to the protesters' allegations, Borrows said no, but wouldn't be drawn on what "mistake" he had made.

"We all make mistakes but we don't expect to have to answer for them for ever," he said.

"That's things you'll have to find out about but I'm not going to run along and tell stories on myself."