Chances are that the dream relates to your own conscience. Perhaps, you are aware that your behavior leaves much to be desired, and therefore you are trying to arrest yourself. Police embody protection, compliance with established rules, structure, and control. Dreaming of the police denotes insecurity and dependence. If the police detain you justly it evidences the presence of guilt. Now, if you are accused of something you have not done it expresses the injustices you suffer in real life: repressions (very often sexual) resulting from norms you must comply to. If you break the rules, however the dream shows that you need to reaffirm yourself and you wish to overstep the limits imposed by others. According to tradition, dreaming of a police officer portends that someone you love will help you.
Gallery of dreams
Do animals dream?
Research conducted by various scientists show that animals do experience dream while sleeping. They also experience similar sleep stages like human beings - REM and Non-REM. If you have noticed a dog sleep, it might sometimes wag its tail, this indicates some response to its dream. A study was conducted in a cat by removing a part of the brain stem, which will not prevent it from reacting to the dream during REM. It was noted in some cats they were aggressively chasing mice as in reality.
If you want to be more creative today, that you were yesterday, it would be ideal for you to have enough rest and sleep. Your brain will be working overnight to consolidate your memories, making them stronger and making you organized and well-structured. Researches showed that people will have stronger emotional components, which could surely help with their creativity.