During that period, two females and two males were detected with an illicit drug present in their systems while driving.

The drivers were arrested for the purpose of further testing and the test results have been sent to be analysed before further action is taken.

Local police have stepped up roadside testing in an effort to ensure road safety in the district as well as creating an awareness of the consequences of driving while under the influence of alcohol or drugs.

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ON Wednesday, September 16, a woman attended the Oberon Correctional Centre to pick up a male inmate who was to be released.

The woman handed a bag of clothing to correctional centre staff for the inmate and staff located a mobile phone within the bag.

Mobile phones are prohibited from correctional centres.

The woman was spoken to by police and she was issued with a Court Attendance Notice for the offence.

ON Saturday evening, September 19, a male driver was stopped for a roadside test.

He returned a positive result to a breath test and was arrested and taken to Oberon Police Station for a breath analysis.

As a result, the driver was issued with an infringement notice for driving with low range PCA and his licence was confiscated and suspended.

About 6.40pm on Sunday, September 20, a Ford sedan travelling south on O'Connell Road, Oberon collided with a Toyota utility travelling in the opposite direction.

The blue Ford sedan appears to have veered onto the incorrect side of the road and collided head-on with the Toyota utility.

As a result of the collision, the 60-year-old male driver of the Ford sedan was airlifted to Westmead Hospital suffering serious head and leg injuries.

The 43-year-old male passenger was airlifted to Liverpool Hospital suffering from serious head injuries.

The 69-year-old driver of the Toyota utility (with a serious injury to his lower right leg) and his 19-year-old passenger (various minor injuries) were both taken to Orange Base Hospital.

A crime scene was established by officers with the Metropolitan Crash Investigation Unit and Forensic Imaging Section.