Operation Stay Alert ran from Friday until Monday in an effort to reduce the growing road toll on Western NSW roads.

Despite "saturation policing" on the region's roads, Western Region Traffic Tactician Inspector Ben Macfarlane said a number of drivers had been caught doing the wrong thing.

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By the third day of the operation, police had already issued 159 speeding fines in Western NSW, including 19 in Chifley, followed by Orana Mid Western (18), Central North (eight), and Central West (five).

Also, 134 fines have been issued for a range of other infringements, with an additional 11 for restraint offences.

In the three days, police conducted 4134 random breath tests across Western NSW, including 744 in the Orana Mid Western region, followed by Chifley (550), Central West (286) and Central North (209).

GRAPH: Story continues under table

Among the motorists caught out in the Orana Mid Western region was a 46-year-old Warren male who was pulled over by officers at 10.20pm on Sunday.

Insp Macfarlane said was "attempting to evade police by driving at high speeds along Dubbo Street and Hale Street, Warren".

"He returned a positive breath test and at Warren Police Station recorded a reading of 0.124," he said.

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"The vehicle he was driving was also unregistered."

The man's licence was suspended and he was issued a field court attendance notice for the offence of mid range PCA and drive unregistered vehicle.

Then, at 2pm on Sunday a 36-year-old Narromine man was stopped on Dandaloo Street in Narromine for a random breath test.

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"Subsequent checks of his licence revealed he was a suspended driver," Insp Macfarlane said.

A 35-year-old Orange woman was stopped for an RBT in Lee Street Wellington at 7.20pm on Saturday and returned a positive breath test of 0.078.

In Coolah at 1.50pm on Saturday, a 23-year-old man was allegedly caught by officers travelling at 66km/h in a 50km/h zone.

"The male returned a positive breath test and subsequently returned a reading of 0.087," Insp Macfarlane said.

He was issued a court attendance notice for mid range PCA and not comply with interlock conditions and his was licence suspended. He also received am infringement for the exceed speed.

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