act outside the law
The Spanish phrase 'actuar al margen de la ley' translates to 'act outside the law' in English. This literarily means to engage in actions that are illegal or not recognized by legal authority or framework, basically doing things that are against the law. It can refer to a broad range of illegal activities, regardless of the intention or the context in which the actions are performed. It is a figure of speech often used in legal and justice system contexts.
It is your duty not to act outside the law as a responsible citizen.
The subject here is 'you' and it refers to the responsibility of each citizen to not break the law. The word 'obligation' is used to emphasize the importance of this duty.
He is accused of acting outside the law during his time as boss.
In this sentence, the subject is 'He'. 'He' is accused of behaving unlawfully during his tenure. 'During his time as boss' gives context to the duration when the illegal activities were allegedly carried out.
The government must act within the law if it wants to maintain public trust.
This phrase emphasizes the need for righteous behavior on part of the government. The key message is that the government should act lawfully to earn and keep the public's trust.