PITTSFIELD, Mass. (WWLP) - The Pittsfield Police Department has issued a warning to residents regarding recent reports of individuals using aggressive tactics while going door-to-door, primarily attempting to sell solar products. According to witnesses, these solicitors have been persistent, refusing to take "no" for an answer. The police remind the public that anyone conducting door-to-door sales within city limits must possess both a state-issued Hawkers and Peddlers license and a permit for Soliciting and Canvassing issued by the Pittsfield Police Department. These permits must be visibly displayed by the individuals. Those found operating without the proper permits may face fines or have their permits revoked. Residents are encouraged to contact the Pittsfield Police Department's non-emergency number at 413-448-9700 if they encounter any suspicious or unlicensed solicitors. Police ask that complaints be reported as soon as possible to help authorities investigate and take action promptly. Local News Headlines Pittsfield police warn residents of aggressive door-to-door sales tactics Deadly accident closed I-91 ramp that connects to Bradley International Airport Family Convenience in Quincy sold $1 million lottery ticket Crews working to repair water main break on East Main Street in Orange WWLP-22News, an NBC affiliate, began broadcasting in March 1953 to provide local news, network, syndicated, and local programming to western Massachusetts. Watch the 22News Digital Edition weekdays at 4 p.m. on WWLP.com.