This then means that the government has to go to third parties and contract with them to provide those goods and charge the people using them.
For example, an ankle monitor - the state can't provide it and give it to the person for supervision and so the third parties who make them have a captive customer base - both the state and the individual.
When looking at items inside prisons, there are special requirements for them. They need to be transparent so that contraband can't be hidden in them. There are a number of other requirements for it too. It must run on batteries that can be purchased. This creases a very small market which in turn results in higher individual prices.
It is a complex topic that from one side or the other can appear to be clear cut - but the boundary between those sides is incidentally complex that results in a market that has prices much beyond what would be considered to be reasonable ... but the alternative is even more expensive or restrictive.
https://www.newyorker.com/books/page-turner/how-one-of-the-l...