I cannot say enough about my experiences with Mark and Top Gun Investigations. No matter what the case, they are always timely, competent and within my budget. Mark, in particular, is always available to take m phone calls on any day of the week and at any time of day. In the past, I have used other agencies with poor results. Based on the speed and effectiveness of Top Gun Investigators, I have used them exclusively for the past several years. I am very pleased with Top Gun and highly recommend them for any surveillance or other investigative needs you might have. M. Reinhold, Esq, Tampa, Fl.