One of the injuries that is mentioned in the Declaration of Independence is the following:
"He [the king] has dissolved Representative Houses repeatedly, for opposing with manly firmness his invasions on the rights of the people."
The dissolution of representative houses is an instance of the King being above the law. It is also an instance of a lack of checks and balances and a disregard for the separation of powers. These are all important factors in the context of the Revolutionary period, as these complaints were addressed in the Articles of Confederation and later in the Constitution.
One of the 27 injuries listed in the Declaration of Independence states: "For imposing Taxes on us without our Consent". It was just the opposite of what the colonists claimed: "No taxation without representation".
"No Taxation Without Representation" was a slogan used in the 1750s and 1760s that summed up one of the main complaints of the American settlers in the Thirteen British Colonies in America, which was one of the causes that led to a revolution that ended in an open war between the discontented colonists and England in the territory that today is the United States.
In short, a large portion of the American colonists believed that as they were not represented in the distant British Parliament, any law instituted by the metropolis (such as the Sugar Act and the Stamp Act) was illegal under the 1689 Bill of Rights, and denied their rights as English.
One of the grievances that the king of England inflicted in the colonies was the following:
"He has refused his Assent to Laws, the most wholesome and necessary for the public good."
This is a particularly important complaint. In these lines, the writers of the Declaration tell us that the king was unresponsive to their needs. Whenever the colonists saw a need for a new law, and decided to create it, the king would refuse to give his assent. This caused the colonists problems, because they were unable to try to find a solution to their own problems.