Lane's mission was simple and that was to collect footage of these criminal activities, then swoop in and arrest them, and collect all the evidence needed.
Once interrogated, the arrested criminals were going to spill their connection eventually, which would lead back to Brooke. This would surely destroy Brooke's reputation and throw him down from his pedestal.
Before entering Martin Luther King Avenue, Lane took a cape and threw it around himself and also wore a mask to not stand out among the crowd. Although this did make him look like quite a suspicious individual, at least it allowed him to strut inside without any worry.
Lane found some secluded corner for him to park his bike. Then, he took a short sprint to gain momentum and hopped up to the third floor of a building with just one jump. He continued hopping along the rooftops and slowly advanced toward Bartlett.