DETECTIVES have charged a 21-year-old man as a result of their investigation into three incidents in Jindalee, Cooloongup and Hamilton Hill earlier this month.
Regional investigation unit detectives have alleged about 10.10pm on Monday, March 6 the man entered a fast food restaurant on Jindalee Bvd, Jindalee.
The detectives alleged the man was in possession of a set of bolt cutters and a knife and started swinging them around.
They also said the man swung the knife towards a staff member, narrowly missing them before taking an amount of cash from the till.
The Rockingham man was charged with two counts of armed robbery and attempted armed robbery.
He was due to appear before the Perth Magistrates Court on Friday, March 10.
About 4.20pm on March 6 the man entered a business on Forrest Rd, Hamilton Hill.
Police alleged he produced a metal pole from under his jacket and began waving it around in a threatening manner demanding cash.
A staff member grabbed a metal pole and ran towards the man, causing him to run empty handed from the store.
Police also said about 8.15pm on Friday, March 3 the man had entered a business premises on Ennis Ave, Cooloongup.
They alleged the man brandished a metal pole, swinging it and smashing the cash register while demanding cash.
A staff member gave him some money and the man then left the store.