Final answer:
The treatment of the dhobi in a Karachi court isn't provided in the references given. The scenario mentioned suggests possible legal injustice, but without more context, a definitive answer can't be provided.
Step-by-step explanation:
The treatment of the dhobi in the court in Karachi is not explicitly detailed in the provided references. However, the excerpt suggests a scenario in which individuals were treated unjustly by the legal system, as it mentions being wrongfully accused and the lack of financial resources to afford bail or an attorney. This scenario can be indicative of systemic issues within the justice system, potentially highlighting a lack of fair trial, misconduct by authorities, or the impact of socio-economic status on legal outcomes. The historical context provided by the reference to Abu Zayd al-Sirafi, an ancient traveler, does not offer specific insights into the treatment of the dhobi in Karachi court. Thus, without additional context, it is not possible to provide a factual and detailed account of how the dhobi was treated.