Poland is a civilized European country. However, it is still necessary to follow basic safety rules here. For example, do not carry large amounts of money with you.
For the safety of your car, it is recommended to park it in paid parking lots, and always take all valuable items with you.
If you find yourself in trouble, for example, if you have been robbed, contact the local police. If your documents are missing, contact the duty consul at the embassy of your country. Since 2013, a special hotline for tourists has been operating in Poland: +48 608 599 999 and +48 22 278 77 77 (calls are chargeable).