A Feilding grandmother who lashed out at police with her legs, fists and backside was unable to convince a judge of her innocence at the Feilding District Court.

Having pleaded not guilty to eight charges of theft, obstruction, assault and threatening to kill, Joanne Bowler faced up to Judge Gregory Ross at a defended hearing yesterday.

Police prosector Sergeant Chris Whitmore said 52-year-old Bowler was charged with obstructing police when she attempted to interfere with the arrest of her 28-year-old daughter, Faith Bowler, at Feilding's KFC restaurant on April 16.

When Senior Constable Grant Lawton attempted to stop her, she punched him in the chest.

He arrested Joanne Bowler and took her to the Feilding police station but not before she threatened to kill him.

While in the cells, female police officers strip searched Bowler.

After stripping down and bending over, Bowler pushed her naked backside into Detective Felicity Mansell legs several times and told her to "take a good look".

Shortly after this, Ms Mansell became engaged in a scuffle with Bowler which prompted constables Glenn Ryan and Scott Banner to intervene. Mr Ryan was forced to pin Bowler's legs and then punched her thighs to contain her.

In the melee, Bowler landed a kick to Mr Ryan's upper leg narrowly missing his groin. Bowler received severe bruising in the fight.

Three of the charges related to the theft of jewellery, photos and ornaments from three Feilding stores about midday on April 16.

Mr Whitmore said Bowler, aided by daughter Faith, stuffed jewellery into her clothes when she entered Precioso. This was corroborated by store assistant Sandra Osbourn, who said she felt intimidated by Bowler.

Bowler's defence counsel Richard Bedford argued that Osbourn would have been unable to see Bowler commit the theft, as Faith was standing between them.

Bowler was also accused of stealing ornaments from Turners Gifts and Luggage and a bag of photos from I.B Mandahl Limited Photography.

Photo technician Tracey Neilson said she saw Bowler walk out the store with the bag, while fellow employee, Caroline James, saw the bag in the back seat of Bowler's ute.

Mr Bedford said the bag could have been one Bowler had been given by the store earlier in the year.

Police recovered several stolen items from Bowler's ute. When Bowler took the stand, she denied taking anything from the shops.

Bowler, whose son Jordan was killed in a car crash earlier this year, said she only got involved in the KFC incident when she saw a police officer hit her daughter with a baton. No evidence was presented to support this accusation.

Judge Ross said he rejected Bowler's denials, and found her guilty on all but one of the charges.

He dismissed the theft charge at Turners Gift and Luggage because of a lack of evidence.

Sentencing is on September 22.