A 39-year-old woman has been fined $500 for stealing cigarettes from a Kelmscott IGA while a mob are accused of trashing the store in retribution for a child allegedly being detained.

Police confirmed today the woman had been handed a criminal infringement notice for the offence, which carries a $500 fine.

Acting deputy commissioner Gary Budge said police had identified other people suspected of committing crimes during the incident and were now trying to find them.

A group are accused of storming the store after the owner allegedly locked a boy in a storeroom for stealing a bottle of Coca Cola.

Mr Budge said police were always investigating the crimes but initially had some problems with the CCTV footage and identifying those allegedly involved.

“we have now identified all those that we believe were involved in that criminal conduct,” he said.

He said one woman had been charged and Police were now working to track down the others, many of whom lived in regional W.A, and charge them.

He could not provide exact numbers on how many people police were looking for.

The store made headlines earlier this month after The West Australian revealed the frustrated store owner had allegedly locked a nine-year-old boy in a cage for stealing a can of Coke.

CCTV footage later emerged of a group, which included children, throwing rocks, vandalising shelves, ransacking cigarette cabinets and trashing the owner’s office.

The store owner’s lawyer John Hammond told 6PR Morning Show host Gareth Parker said his client was punched and kicked in the attack in scenes which were akin to a war zone.

Mr Hammond said the store owner was frustrated after being targeted by countless thefts in recent months.

“Since he took over the store in April last year he said there’s been at least 40 incidents of theft,” he said.

A 41-year-old man was charged with aggravated assault and deprivation of liberty after allegedly locking the nine-year-old boy in a padlocked “cage” at the back of a store on December 30.

The boy escaped from the storeroom by smashing a window, cutting his arm as he made his escape.