Does Very Short Gamma Ray Bursts originate from Primordial Black Holes?
  Review
  We present the state of current research of Very Short Gamma Ray Bursts
(VSGRBs) from seven GRB detectors. We found that VSGRBs form distinct class of
GRBs, which in our opinion, in most cases can originate from the evaporating
Primordial Black Holes (PBHs). Arguments supporting our opinion: 1. GRBs with
time duration (T90) < 100 ms form distinct class: VSGRBs. 2. We observe
significant anisotropy in the galactic angular distribution of BATSE VSGRB
events. 3. V/Vmax distribution for BATSE VSGRB events indicates the local
distance production. 4. VSGBBs have more energetic {\gamma}-ray burst than
other GRBs with longer duration (KONUS). 5. We observe small number of
afterglows in SWIFT VSGRB sample (25%), in contrast with the noticeable
afterglow frequency in SGRB sample (78%). 6. Time profile of rising part BATSE
VSGRBs is in agreement with the evaporation PBH model.
