The Philadelphia Department of Prisons (PDP) provides a secure correctional environment to detain people accused or convicted of illegal acts. Instructions on how to submit an anonymous tip to the police via text, phone, email, or using an online form.After your arrest, you are brought to the police station for booking. Booking involves fingerprinting, mug shots, and verifying your identity before moving on. The LLF Law Firm explain the process of an arrest, covering both arrests that happen on the scene of a potential crime, and arrests via warrant. If the defendant completes the sentence, any record of the arrest may be expunged. If the defendant fails to complete the sentence, the case will go to trial. The number on the 30-155 is the. The LLF Law Firm explains what happens in the confusing time after an arrest, covering the booking process and how bail works. When is there probable cause to make an arrest?