To become a police officer in Dubai, you will need to follow these general steps:

1. Meet the eligibility requirements: You must be a citizen of the United Arab Emirates, at least 21 years of age, have a minimum height of 165 cm for men and 157 cm for women, and be physically fit.

2. Obtain a high school diploma or equivalent: You will need to have a high school diploma or equivalent to apply for a police officer position in Dubai.

3. Pass the required tests: You will need to pass a series of tests, including written and physical fitness tests, as well as a medical examination and a background check.

4. Attend a police academy: If you are accepted, you will need to attend a police academy for training.

5. Complete the training program: The training program can last from six months to one year, and will cover a wide range of topics, including law enforcement procedures, ethics, and firearms training.

6. Apply for a police officer position: Once you have completed your training, you can start applying for police officer positions in Dubai.

Additionally, you may need to have a valid UAE driving license and be proficient in Arabic and English.

It is recommended to visit the website of the Dubai Police for more detailed information on the requirements and the application process to become a police officer in Dubai.