Complex sentence: It is not known whether they have any minimum standards for justice (acting as Galactic police and thugs at the same time), although they do appear to have some moral values as they offer compensation on the odd occasion that they make a mistake.
Split into simpler sentences: It is not known whether they have any minimum standards for justice, acting as Galactic police and thugs at the same time. They do appear to have some moral standing, however, as they offer compensation on the odd occasion that they make a mistake.