This is the 5156th most frequent Arabic word.
بالشرطة
"With the police."
Here, 'بالشرطة' refers to being affiliated with or employed by the police force.
أنا أعمل بالشرطة.
I work with the police.
In this sentence, 'بالشرطة' indicates association or contacting the police force.
حدثت المشكلة بسبب اتصالهم بالشرطة.
The issue occurred because they contacted the police.
'بالشرطة' here signifies that the investigation is taking place within the police department.