Police have charged a 34-year-old man in the groping of an 11-year-old girl in Park Slope Sunday afternoon and an assault on a police officer investigating the case the next day, the NYPD says.

Police have charged Jesse Dailey with resisting arrest, obstructing governmental administration and multiple counts each of assault, sex abuse, forcible touching and endangering the welfare of a child.

The girl was walking with her 10-year-old friend at Fourth Street and Fifth Avenue when a suspect approached them from behind. He pushed up against the 10-year-old, grabbed the older girl and then ran away, police say.

The next day, a police officer investigating the case saw a man matching the suspect's description, police say. He attacked the officer, dislocating her shoulder before running off.

Dailey was arrested Thursday morning after police went to the his house to question him. On Wednesday, police got a tip from someone who NYPD Commissioner Ray Kelly said recognized the man as the suspect and asked to see a copy of the his ID.

It's not known whether Dailey has an attorney.