Morning Buzz: Sydney news, traffic and weather for Tuesday, September 27

CURTIS CHENG: Almost a year after her husband was gunned down as he left work, Selina Cheng has spoken publicly for the first time. Curtis Cheng, 58, a police accountant, was shot from behind as he walked away from NSW Police headquarters in Parramatta on October 2 last year.

DRIVERLESS CARS: Opening up NSW roads to driverless cars is likely to be held back in the same way as different track gauges for states stymied the railway industry more than a century ago unless a national approach is taken to the new technology, an inquiry has found.

COUNCIL MERGERS: The state government would need to rerun a public process to gauge community attitudes to merged councils in Sydney's lower north shore and inner west following court rulings that found flaws in previous analyses, affected councils say.

SHARK SIGHTED: A great white shark was seen off Lighthouse Beach in Ballina, on the NSW North Coast, a short time after a teenage boy was bitten on the leg while surfing, police say.

PRISONER POPULATION: Controversial changes to NSW bail laws have led to an increase in the number of prisoners being held in custody awaiting trial but court delays are playing a bigger part in the swelling prisoner population, according to the state's chief crime statistician.

POKIE-LEAKS: Three federal politicians are calling on whistleblowers to send them poker machine industry secrets with a promise they will be made public using parliamentary privilege.

POSSIBLE SUPERMARKET MOVE: German discount supermarket Lidl is applying for trademarks covering hundreds of products, stirring speculation the retail giant is seriously looking into opening in Australia.

BREAK IN: A big-hearted publican has been left distraught and a local charity robbed of thousands of dollars after a brazen break-in at a Riverina hotel on Monday.

RADIO CHANGE: Radio conglomerate Southern Cross Austereo announced on Monday it will re-brand nearly 80 radio stations across Australia as either Triple M or Hit Network by December 15.

TOP CHOP: For the second year running, Australian beef producer Jack's Creek has taken out the World Steak Championship that looks for the best cut of beef on the planet.

BIG DIFFERENCE: In an alarming finding, the gap between Indigenous and non-Indigenous Australians has widened in some respects, in particular the health impact caused by domestic violence.

LATE FEES: Australians were hit with a shocking financial penalty of $286 million for failing to pay their bills on time in the past year, a new survey shows.

DOMINOS JOB DRIVE: High-flying Domino's Pizza Enterprises insists it can easily swallow looming pay rises for staff who missed out on penalty rates thanks to an old deal with the shop assistants' union, as it sets out to hire 2500 workers over the next two weeks.

SUPPORTER FRENZY: Jake, Milly, Tom, Harry and Lucy Waters have gone above and beyond to show their support for the Cronulla Sharks by painting their house in blue and black.

AFL FINANCE: Collingwood president Eddie McGuire has challenged the AFL's new financial model, suggesting the league has failed to reward the bigger clubs for their role in achieving the historic $2.5 billion broadcast deal which rolls out in 2017.

ANDREW FIFITA: Melbourne skipper Cameron Smith says Andrew Fifita's unpredictability makes him near impossible to plan against, but the Storm are more focused on nullifying his impact than shutting him down altogether.

SHARKS SIGNINGS: Cronulla chief executive Lyall Gorman has issued a hands-off warning to suitors of their hottest prospects in Jack Bird and Valentine Holmes, claiming the star duo will not be driven solely by money when signing their next deals. | Sharks facing selection dilemma