AUGUSTA — A Sidney couple was indicted Friday in an incident where the district attorney says their 1-year-old daughter got into heroin last summer.

Jason D. Thomas, 34, and Katie J. Robinson, 23, are charged with unlawful possession of heroin and endangering the welfare of a child on July 17, 2015, in Sidney.

“We’re alleging that the child ingested heroin, and the child was 1 at the time,” said Kennebec County District Attorney Maeghan Maloney.

She said while the incident occurred in July, the couple was arrested on the charge Dec. 21, 2015.

“The detectives with the Kennebec Sheriff’s Office put a lot of time into this investigation,” Maloney said on Monday.

Maloney said the parents took the child to the hospital at the time, and she tested positive for opiates at the hospital.

Sometime afterward, the home was searched and a number of interviews were done, Maloney said.

An indictment is not a determination of guilt, but it indicates that there is enough evidence to proceed with formal charges and a trial.

The unlawful possession of heroin charge is a felony and carries a five-year maximum term of imprisonment. Endangering the welfare of a children is a misdemeanor offense with a maximum jail term of 364 days.

Thomas has previous convictions in Kennebec County, including one for drug trafficking in 2006, in which he was sentenced to a 10-year prison term and ordered to serve an initial four years and five months of that with the remainder suspended.

Published records show Robinson was convicted in June 2012 of unlawful possession of oxycodone and trafficking in prison contraband in Augusta and was sentenced to serve an initial 28 days with the remainder of a two-year jail term suspended. She was placed on two years’ probation.

Betty Adams — 621-5631

badams@centralmaine.com

Twitter: @betadams