Two men have died after a single-vehicle crash near Casino overnight.

Richmond Police detectives said they started Strike Force Balsillie in February this year to investigate methylamphetamine and firearms supply in Casino.

Two men have been charged with drug-related offences, a third man was stabbed and a police officer was injured following an altercation at a Nimbin backpackers’ hostel on the weekend.

A Woodburn teacher has been charged over the alleged sexual assault of a teenage girl between 1995 and 1997 in the northern rivers.

Police are remaining tight-lipped after officers driving through a Casino park on Wednesday afternoon ran over a man who was sleeping off too much drink under a tree.

The Richmond and Tweed-Byron local area commands will each get nine new police officers the state government announced yesterday. Dwindling police resources were a contentious issue at the recent NSW election.

Police have made a series of arrests as part of a crack-down on crime in the Lismore suburb of Goonellabah. A total of five juveniles and four adults were arrested for offences ranging from break and enters to affray and offensive behaviour.

Police have charged an 81-year-old Kingscliff man who was former Catholic school teacher with 19 historic sex offences against children and adult teenagers in the 1970s and 1980s at a Lismore school.