There is another revision that offers the same theme and symbolism. Another revision offers the same theme and symbolism. All police officers must follow a rigid code of conduct. Active verbs express meaning more vigorously. Forms of 'be' lack vigor because they convey no action.
Passive verbs lack strength.
The generator was destroyed by a surge of power. A surge of power destroyed the generator. Replace 'be' verbs when it causes wordiness. When Rosa Parks was resistant to giving up her seat on the bus, she became a civil rights hero. When Rosa Parks resisted giving up her seat on the bus, she became a civil rights hero.