OFFENDERS who spit on police will face up to 14 years in jail, if a new bill is passed through parliament.

Attorney-general Jarrod Bleijie has introduced the criminal law amendment bill, which is set to be debated during sittings some time next month.

If successful, the tough new changes would see the current maximum penalty of seven years in jail doubled.

"Police officers put their lives on the line every day to protect Queenslanders and the Newman Government will do whatever it takes to keep them safe," Mr Bleijie said.

"These tough new penalties send a clear and strong message that these offences simply won't be tolerated.

"It is intended that increasing penalties will act as a deterrent and reduce the number of assaults against police."

Warwick is no stranger to police assaults, with a number of recorded spitting cases in the past two years.

A Warwick man was jailed for one month in September 2010, after he pleaded guilty to seriously assaulting two police officers.

The then 18-year-old spat on a female officer, with his saliva landing in both the officer's mouth and eyes.

Her male colleague ended up with the man's spit on his forearm.

The court heard the intoxicated man had earlier instigated fights with security staff at a local hotel and had attempted to spit on them also.

This year, a 30-year-old man was jailed for six weeks for spitting on and biting an officer who was trying to arrest him.

The man was "ranting", covered in blood and appeared to be under the influence of an intoxicant at the time of his arrest. The offender's saliva landed on the sergeant's trouser leg.

In May this year, a Warwick woman was released on court-ordered parole after she spat on a Warwick police officer and punched a female officer in the abdomen.

Her saliva landed on the officer's trouser leg.

The woman was abusive to police and told officers she was angry about being woken up during her stay in the Warwick Hospital.

Another Warwick man was released on probation earlier this year for spitting at an officer.