What do the courts pay attention to when deciding whether a confession is voluntary?

I believe that what the courts pay attention to when deciding whether a confession is voluntary is all of the above (given that you have some options): the nature of the police conduct, the characteristics of the accused, and whether or not force was used.

Ifound this information on google “agriculture is important, as are manufacturing, tourism, and a strong geothermal energy resource base. the economy has been expanding since 2010.” i hope this