After the findings of the fatal accident inquiry were released, solicitor William Boyle issued a statement on behalf of Mr Batt’s parents and two younger brothers.
Relaying the words of the family, he said, “Nothing will bring Kristoffer back and it makes it sadder that a sheriff agrees that his death could have been prevented at almost every turn, but we hope it may prevent some other family going through what we are having to go through.
“We find it extraordinary that people charged with the safety of others should so blatantly abuse their position as to devote all night playing on the internet and concerned with their own personal interests.
“From the moment he was taken in to custody and certainly once he pressed alarm bells, Kristoffer was entitled to at least a minimum of consideration for his welfare.
“We find it unbelievable that a man who falsified official documentation and was using unauthorised internet access has not lost his job.
“Sadly, we as parents and Kristoffer’s two younger brothers are deprived of a future with the boy that we all loved deeply and are immensely proud of.”
A police spokeswoman said, “Tayside Police acknowledge the determination of Sheriff Munro in the fatal accident inquiry into the death of Kristoffer Batt. The document is lengthy and detailed and the force will take time to consider the sheriff’s findings in full.
“Initial consideration of the determination indicates that most of the issues raised have already been addressed in terms of current procedures. Others will be progressed by the force or will be raised with the other Scottish police forces as they relate to issues that merit discussion nationally.”
Asked whether any disciplinary action had been taken against Stuart Lewis, the spokeswoman would say only, “It is not Tayside Police’s policy to discuss internal disciplinary proceedings or outcomes.”
The inquiry had previously heard Mr Lewis was suspended, disciplined, given a written warning and transferred out of Dundee.