Police have been criticised for not investigating the disappearance properly.
It came after Mr Dawson began a relationship in 1980 with his 16-year-old student Joanne Curtis. He has said that she abandoned the family for a religious group.
Dawson is a former first grade rugby league player turned high school teacher.
Mick Fuller, the New South Wales police commissioner, recently apologised for police failings on the case during the 1980s.
"There is clear and uncontested evidence that Lyn Dawson was alive long after she left Chris and their daughters", they said in a statement.
"Statements from witnesses helped us tie pieces of the puzzle together".
"A team of dedicated detectives has been investigating this case over the past three years", he said in a statement.
China trade truce prompts a sigh of relief across markets
Chinese state media on Monday cautiously welcomed the trade war truce on Monday, without mentioning the US January 1 deadline. Unrelated directly to trade, China has agreed to crack down on the production and distribution of Fentanyl.
"We have no doubt whatsoever that Chris will be found not guilty as he is innocent".
"We're certainly hoping an interview with this 70-year-old man who's now in custody in Queensland will assist us with the outcome of where the body may be".
Mr Dawson, who was also a highschool Physical Education teacher, was taken into custody at a home in Biggera Waters on the Gold Coast just before 8am on Wednesday.
Fuller said authorities have not located Dawson's body, and that finding her remains is "not crucial to finalising the matter", but maintained "we certainly won't give up on that search".
In 2015, New South Wales Police's Strike Force Striven was established to reinvestigate the case.
"We were always hopeful but if you look back over the years you could say we've been kicked in the guts a few times, but we've got there".
Anchorage's Port of Alaska, which handles half the goods shipped to the state, is also being evaluated for damages, Falsey said. Meanwhile, the Alaska Department of Transportation and Public Facilities is assessing damage to transportation infrastructure.
On Monday, about 50 wounded Houthi rebels were evacuated from the Yemeni capital, Sanaa, and flown to Oman to receive treatment. The rebel group had wanted guarantees its fighters would be able to leave and return to Yemen safely, among other demands.
Two days after he was named interim head coach, Joe Philbin fired a longtime member of the Green Bay Packers coaching staff. Associate head coach Winston Moss, who also coached outside linebackers, was let go on Tuesday.
The warning identified vulnerable areas including Vanuatu's Anatom Island, Esperitu Santo; New Caledonia's Noumea and Fiji's Suva. Meanwhile Australia's department of foreign affairs warned its citizens in New Caledonia to seek safety.
Jon Rahm grew up idolizing Tiger Woods , so earlier this fall during the Tour Championship he made the most of an opportunity. And now this Sunday, Rahm round off 2018 with yet another fantastic year. "I've been out here for 20-some odd years".
Just a few hours later, Ocasio-Cortez responded to the former governor to clarify her statement in relation to her proposed plan. "We've dug deep and we've done what we thought was impossible". "We did it when no one else thought we could".
Capitol on Wednesday at 10 a.m. and his casket will arrive at the Washington National Cathedral five miles away at 11 a.m. He said it was going to be a tough week and he looked forward to it being over.
The live captions and subtitles will be "fast, continuous, and contextually updated as people speak", said the software giant. This does not remove the fact that the features will also come in handy for other users within the Skype community.
Star spinner Ravichandran Ashwin will be flanked by pacemen Mohammed Shami, Ishant Shama and Jasprit Bumrah in India's attack. Young Archie Schiller has been added to the Oz squad for the Adelaide Test match. "Sledging, I don't know", Pujara said.
Shaheen strikes early in New Zealand’s second innings
Shafiq brought up his 12th Test ton with a sharp single off Somerville before falling leg-before to Patel to a straight delivery. Things came to a head when Hafeez was dismissed for a duck in the first over of the innings by Trent Boult.
UK intelligence chief to make rare public speech
That's in direct contrast, they say, with the disinformation spread by Russian Federation and its operatives flouting global law. And he will talk of the need for "fourth-generation espionage", fusing human skills with technical innovation.
Kevin Hart Will Host The 2019 Oscars
Twitter wasn't really sold on the idea of Kevin hosting the awards and some people said he wasn't "even funny". I want to thank my family/friends/fans for supporting me & riding with me all this time....
Studs and Duds From the Ravens' Week 13 Win Over the Falcons
The Ravens (7-5) have bolstered their AFC wild-card position since Jackson took over at quarterback for the injured Joe Flacco. It will up to Matt Ryan and Julio Jones to try to salvage what's left of a disappointing season against the rejuvenated Ravens.
NSW teen shatters records with historic double ton
The teenager, Oliver Davis whacked six sixes in an over to smash quite a few records in the game of cricket. Meanwhile, Davies' knock was also the first one-day double-century ever scored in the U19 competition.