Amanda Bynes Arrested

New York's finest returned to the scene of the alleged crime just a few minutes ago -- combing Amanda Bynes' apartment building for information and witness statements.

Law enforcement sources tell us ... NYPD cops got statements from the night doorman as well as 2 other employees, who were there when Amanda was allegedly smoking marijuana in the lobby and acting crazy.

We're told cops also went upstairs to Amanda's floor for more witness statements.

As we reported ... cops arrested Amanda after finding weed in her apartment. They also say she threw a bong out the window, allegedly to 86 evidence of a crime.

Amanda Bynes is back on the streets ... the judge released her on her own recognizance moments ago in NYC -- after she offered a hysterical excuse to cops for her alleged bong-tossing arrest.

According to cops, Amanda told them what she threw out the window last night was "just a vase." The official complaint was read in court.

Prosecutors requested Bynes be held in lieu of $1,000 bail. The judge instead chose to let her go without bail ... but gave her a stern warning that if she missed her court date in July an arrest warrant would be issued.

Amanda was escorted out of court by an officer ... and left, on her own, in a taxicab.

9:30 AM PT -- Amanda has been formally charged with attempted evidence tampering, reckless endangerment and marijuana possession.

8:52 AM PT -- TMZ obtained the criminal complaint from the incident ... which says a man in Amanda's building told cops he witnessed the actress smoking a joint in the first floor lobby.

The report says an officer went to Amanda's room ... and saw a bong on the kitchen counter.

According to the report, the cop -- wearing a "full police uniform" -- asked Amanda about the bong ... and that's when the actress flipped out.

Here's the cop's narrative -- "I observed [Amanda] grab said bong, run to the westbound-facing window, and throw it out the window where numerous pedestrians were walking on the 8 Avenue and West 47 Street sidewalks below."

Amanda Bynes had to remove her platinum blonde wig when she posed for her mug shot last night ... revealing a super short hair cut ... and Bynes didn't appear happy about it.

Bynes sported a scowl and a black shirt when she posed for the photo ... following a bong-throwing arrest in NYC last night.

The 27-year-old actress arrived to court this morning to face a judge -- wearing the wig again -- but it was clear she didn't want to be photographed.

Amanda Bynes has just arrived to court to face a judge about her bong-throwing arrest in NYC last night ... sporting the same clothes and platinum blonde wig she was wearing last night.

Bynes was led into the courtroom in handcuffs ... after spending the night in jail ... and asked photogs not to shoot her as she tried to hide her face.

As we previously reported, Bynes was booked for marijuana possession, tampering with evidence and reckless endangerment after cops say she chucked a glass bong out of her apartment window.

Amanda Bynes was arrested in her NYC apartment Thursday night for marijuana possession and throwing evidence out the window ... TMZ has learned.

According to law enforcement sources ... a building official called police after spotting Amanda in the lobby with a joint, acting erratically and talking to herself. We're told when cops arrived they knocked at her door and she let them in.

Our sources say when police saw the bong Amanda quickly tossed it out the window ... which fortunately didn't hit anyone on the street below.

Amanda, who was wearing a platinum blonde wig, was placed under arrest and went ballistic, yelling, "Don't you know who I am?"

She was booked for criminal possession of pot, as well as reckless endangerment and FELONY tampering with evidence.

Our law enforcement sources say Amanda was briefly taken to a hospital for psychiatric evaluation and then taken to the station for booking.

But the cop shop wasn't the last stop. A cuffed Amanda was then taken to night court just before midnight. She's still there in a holding cell, waiting for a judge. She should get a hearing sometime this AM.