The system could be better suited to reach better levels of justice, but would be exagerated to say that justice has 'too much' independence.
The US constitution was inspired by the work of Jhon Locke, who was one of the first authors who proposed division of powers in the XVII century. The central idea is to avoid the concentration of power in one person or a single institution. In this case, the judges has plenty authority to investigate and judge anyone who commit a crime. Nor political or policial autorities has influence on judges, and this is guarantee by the constitution.
In some cases this principle is susceptible and that's why is necessary the intervention of supreme court, in some cases, when political forces, for example, try to violate these rules stablished by the constitution.
As trade developed across Africa, major cities developed as centers for trade. In Western Africa the major trade centers were cities such as Timbuktu, Gao, Agadez, Sijilmasas, and Djenne. Along the coast of North Africa sea port cities developed such as Marrakesh, Tunis, and Cairo.
Although some specifics of his decipherment claims were later shown to be incorrect, the central argument of his work, that Maya hieroglyphs were phonetic (or more specifically, syllabic), was later supported by the work of Yuri Knorozov (1922-1999), who played a major role in deciphering Maya writing.