Blood droplet dynamics--I

The interpretation of bloodstain patterns at crime scenes has received increased attention in recent years. Important to an understanding of this is knowledge of the fundamentals of blood droplet formation and impact dynamics. A review of the literature reveals that a considerable amount of work has been done with aqueous drop dynamics. Workers in the forensic science area seem to have been unaware of this. In addition, some of the most important and comprehensive early work with blood droplet dynamics seems to have been forgotten. It is not cited in more recent publications dealing with bloodstain pattern interpretation. This literature is reviewed and discussed as well. The present study presents results of experiments with blood droplet dynamics and high-speed photographs of blood droplet impacts on stationary target surfaces. Some longstanding misconceptions of importance to forensic scientists engaged in crime scene reconstruction are discussed.     

Fluidity of cadaveric blood after sudden death: Part III. Acid-base balance and fibrinolysis

In rats, fibrinolytic activity and acidosis increased rapidly after death. Postmortem fibrinolysis and the pH, base excess (BE), and [HCO3-] levels were affected by the method of sacrifice: the lower the pH, BE, and [HCO3-] levels, the higher the fibrinolytic activity. Conversely, in experiments using the vascular perfusion technique, low pH, BE, and [HCO3-] levels of the perfusate induced abundant release of plasminogen activator from the vascular wall.     

Public Access to the English Coastline: An Analysis of Part 9 of the Marine and Coastal Access Bill

The Marine and Coastal Access Bill includes legislative provisions for improving public rights of access to the English coast. This paper examines the background to the coastal access proposals and analyses the draft legislative framework in the context of ongoing controversies over the creation of public rights of access to private land. It also considers the issue of compensation payments to the owners and occupiers of land affected by the coastal access proposals.