Shyanne-Lee Tatnell remains missing in Launceston after two months

Detective Acting Inspector Andrew Hanson said there had been no sign of the Burnie 14-year-old, but police were hopeful the new footage might lead to new developments.

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"We're really keen to try and piece together Shyanne's movements on the night of her disappearance," Acting Inspector Hanson said.

"We're hoping that the additional footage just might help somebody jog their memory or it might help somebody realise that they know somebody who was in the area."

The footage, which Acting Inspector Hanson said was recorded at a property near the Henry Street bridge, shows a person police believe to be Shyanne-Lee walking along the footpath.

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Acting Inspector Hanson said finding the owner of what appeared to be a silver sedan remained a key avenue of investigation.

The acting inspector acknowledged it was hard to gather much detail from the CCTV footage, but repeated calls for any information no matter how trivial it might seem.

"Although the CCTV is very good, it is hard to get images from those that are of a high quality," Acting Inspector Hanson said.

"The image that we've released is quite blurry so I suspect that a lot of people, like us, aren't quite sure what the model is.

"All I'd like to say is that if you did see a silver car or you know somebody that it might be in that vicinity, we'd very much like to hear the details."

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Police search and rescue crews and the Westpac Rescue Helicopter are expected to resume search activities along the North Esk River in the coming days.

Acting Inspector Hanson said the investigation was still considered a missing persons investigation and it would remain focused on the Launceston area however there was scope to expand the case.

"Part of our ongoing investigation is to cover all contingencies," Acting Inspector Hanson said.

"We are considering and looking at every single angle.

"We're not ruling anything in and we're not ruling anything out."

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Shyanne-Lee is described by police as about 160 centimetres tall, with a slim build and blonde hair. Police say she was last seen at about 8.30pm on April 30 on Henry Street, Launceston.

She was wearing a cream-coloured hooded jumper with dark-coloured writing on the chest and shoulder area and bike shorts, according to police.

Information can be provided direct to investigators at Launceston CIB on 131 444 or anonymously through Crime Stoppers Tasmania at crimestopperstas.com.au or on 1800 333 000.

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