Assaults and drug offences have fuelled another surge in the crime rate, revealed today in Victoria Police figures.

The rate of crime has increased by 5.9 per cent, on the back of a 20.7 per cent leap in drug offences and a 11.3 per cent rise in crimes against the person.

Other crime, including justice procedures and offences committed in public places, increased by 18.3 per cent.

Chief Commissioner Ken Lay said this week that drug crime would be behind an overall leap in the crime rate. The extent of that increase was shown in the quarterly figures, which compared crime from October 2010-September 2011 with October 2011-September 2012.

The rate of crime per 100,000 of the population also increased in seven of nine selected offences.

Robbery and property damage offences were the only two crimes to record a drop, both down 1 per cent.

Apart from assault, which increased 14.2 per cent, theft of a motor vehicle charges increased 7.6 per cent and theft from motor vehicle 4.7 per cent.

Family violence again appeared to influence assault statistics, with assault excluding family violence offences increasing only 2.8 per cent.

Residential and other burglary offences also increased.

Deputy Commissioner Lucinda Nolan said family violence-related crime and drug offences had caused the overall increase.

She said family violence offences had increased by 37 per cent, and more possession and use of drugs across the state had caused crimes against the person and property crime to rise.

‘‘The actual number of victims around family violence is a lot higher than what is reported to police,’’ she said.

‘‘We’re narrowing that gap. We are very mindful of the fact that as we do get increased reporting, there’s increased pressures on the agencies supporting us.’’

Ms Nolan said police expected the rate of reported family violence would match the actual rate of offending within 18 months.

Crime rates per 100,000 people increased most in the police service ares of Baw BAw, Hobsons Bay and Glen Eira.

Baw Baw, south-east of Melbourne, recorded a 22 per cent increase in crime per 100,000 people, slightly more than in Hobson’s Bay in Melbourne’s west.

Glen Eira, in the south-eastern suburbs, recorded a 19.4 per cent increase.

Ms Nolan said that police had detected an increase in the production and availability of amphetamines, which had been met with increased use.

She said police were particularly concerned about ice, and would work with national agencies to stop the trafficking of high-quality amphetamines from overseas, while cracking down on local manufacturers.

‘‘Quite often the use of ice [is related to] very violent crimes and crimes against the person,’’ she said.

Ms Nolan said that while there was a causal link between drug and alcohol use and trouble in the home, there was nothing to indicate increased amphetamine use in Victoria was behind a surge in family violence crimes.

North West Metropolitan Region commander Jeff Forti said that more than half of all vehicle thefts in the state occurred in the region.

He said there were 2000 cars each year that were unaccounted for, and could be being stolen as part of organised crime.