Tasmania Police is using a cadaver dog as the search for missing Burnie woman Helen Munnings continues.

The equal highest reward in Tasmania Police history – $250,000 – is being offered in connection with the disappearance of Ms Munnings.

The reward was increased from $50,000 late last month and it was hoped the increase might motivate people to speak with police.

Police cannot confirm whether any information received since the reward was increased has led to the searches this week.

The searches are being conducted in the North-West area but specific locations cannot be revealed.

Detective Inspector Rob Gunton said investigators were still hopeful more people with information would come forward.

“The searches are an opportunity to validate some of the information received,” Inspector Gunton said.

“The investigation remains ongoing and we continue to ask for people with information to come forward, particularly considering the substantial reward being offered.”

In 2012 the Coroner determined that Ms Munnings died in Burnie on or about 23 July.

As with all missing persons cases in Tasmania, the investigation into Ms Munnings’ disappearance has remained active and the decision to increase the reward has come as investigators look into fresh leads.

“Investigators have long held the view that there are people in the community who have knowledge of Helen’s disappearance who, for whatever reason, have not either been able to come forward or have been unwilling,” Detective Inspector Gunton said.

“In the passage of time someone’s circumstances and allegiances may have changed and the offer of a life-changing amount of money may be the motivation they need to come forward. That kind of money allows a fresh start.

“We know that there are people who have information that could lead to a conviction in this case.

Anyone with information that could assist the police investigation is asked to contact Police on 131 444 or Crime Stoppers on 1800 333 000 or online at crimestopperstas.com.au.