Dallas Michael Nehls, 41, who had been in custody since December 9, 2019 pleaded guilty to a raft of charges in the Launceston Magistrates Court.

Defence counsel Claire White said her instruction from Nehls was that he was unlikely to engage with alternatives such as court mandated drug diversion program or a Community Correction order.

"He would rather complete extra time in custody and serve his time out and leave with the opportunity of a fresh start," Ms White told Launceston Magistrate Simon Brown.

The court heard that Nehls, had been living in the alcove of a shop in Launceston's Brisbane Mall.

Nehls pleaded guilty to several charges including stealing, common assault, trespass and destroying property.

Police prosecutor Ashlee Goss told the court Nehls had abused City of Launceston council cleaning staff and police in the Brisbane Mall.

In October, Nehls went on a crime spree with a co-defendant which included thefts from stores in Devonport, Ulverstone, Burnie and Launceston to a total value of $2100.

In Coles Supermarket on Charles Street, he struck the store manager with an open hand and broke a glass door by kicking it.

Magistrate Simon Brown said Nehl's life had spiralled out of control because of alcohol, drug and homelessness problems.

He sentenced Nehls to four months' jail.