In the case of Banks v. California in 1968, the United States Supreme Court addressed an appeal from a defendant who was convicted for burglary and attempted rape in California state court. The appellant, Mr. Banks, argued that his constitutional rights were violated because he did not have counsel present during a police lineup where witnesses identified him as the perpetrator of these crimes. He contended this was contrary to his Sixth Amendment right to counsel and Fourteenth Amendment due process rights under the U.S Constitution. The Supreme Court disagreed with Mr. Banks' argument by affirming his conviction on grounds that there is no absolute constitutional right to have counsel present at pre-trial identification procedures such as lineups or photo arrays unless it can be shown they are so unnecessarily suggestive and conducive to irreparable mistaken identification that he was denied due process of law. This ruling clarified when defendants are entitled to legal representation during criminal proceedings - specifically excluding pretrial identifications like lineups - thereby setting important precedent for future cases involving similar issues.

In the dissenting opinion for Banks v. California, it was argued that the majority's decision to uphold a state law requiring all convicted felons to register with local police departments upon release from prison violated constitutional rights. The dissenters believed this law unfairly targeted individuals who had already served their time and were attempting to reintegrate into society. They contended that such laws only serve to further stigmatize and isolate these individuals, making it more difficult for them to find employment or housing, which in turn increases their likelihood of reoffending. Furthermore, they pointed out that there is no evidence showing these types of laws actually improve public safety or reduce crime rates. Instead, they suggested focusing on rehabilitation programs and other measures designed to help former convicts become productive members of society again.