In criminal cases, it is not uncommon for people to call the office after their current lawyer has failed to reach an acceptable agreement with the prosecutors or the caller does not like the offer received. Sometimes, the unfortunate circumstance of the case is that the prosecutor will not make a deal. Sometimes just having a lawyer who answers to the Defendant for their paycheck instead of the government makes a big difference to the Defendant. Sometimes there are things that can be done to present the case in a better light.
Many criminal drug cases begin at a traffic stop sometimes with a dog sniff leading to a search. Another case of a traffic stop leading to drugs being found has made it all the way to United State Supreme Court. This particular traffic stop led to a dog sniff which when the dog supposedly alerted caused the police to search the vehicle, of course drugs were found.